㈠ 急求一篇3000字的关于汽车的英语文章，带汉语翻译，最好是关于天然气汽车的
How to Choose Car Security
What to look for:
Motion sensors let you leave the top down or the windows open. They are also good for protecting the cargo areas in vans and trucks. The sensors will sound the alarm if someone invades your space.
Glass-break sensors sound the alarm when they "hear" a window breaking. This protects you from the thief who believes he can bypass your alarm by not opening the door.
Driver's side priority unlock lets you open your door without unlocking the others. You can get in your vehicle without letting your guard down.
Remote outputs allow you to expand the alarm's capabilities by adding features like a remote starter or window controls. Most alarms come with at least one remote output. Consider everything you want the security system to do (now and in the future) when choosing an alarm.
When Crime Guard interconnect harnesses are available for your vehicle, Crime Guard security systems are much easier to install than other brands.
Why buy a car security system?
Protecting yourself and your family, as well as your vehicle and your car stereo are all excellent reasons to invest in a car security system. Additionally, most insurance companies offer lowered rates for vehicles equipped with an alarm — it'll pay for itself!
A good security system not only makes your car more difficult to steal, it also makes it easier to live with. The small remote control that you carry with your keys lets you arm and disarm the alarm, lock and unlock your doors, and maybe even zap open your trunk. How's that for convenience?
FREE wiring guide with your system!
For most vehicles made up to 1995, Crutchfield gives you a sheet that tells the location and color of the wires you need to access in your vehicle. For most vehicles made after 1995, we gladly provide the wiring information over the phone, by fax, or by e-mail. This helpful information is FREE with your security system purchase! You also get our free publication, How to Install a Car Security System.
We help you install your own alarm and save
When you order your alarm from Crutchfield, you can also count on the exclusive toll-free Technical Support we offer our customers. Sixteen hours a day, seven days a week, experienced, patient experts are ready to answer your questions (just have your invoice handy when you call). It's like having a pro look over your shoulder while you work!
How a typical security system works
When you leave the car, push the button that arms your system. You hear your doors lock, and a siren chirp tells you your vehicle is protected. If you've accidentally left a door ajar, the system alerts you with a different sound.
When you walk away, you feel confident, assured. The first thing a thief sees when he approaches your car is a flashing LED that tells him your system is armed. Often, that's enough to make him look elsewhere.
If the thief tries to tamper with your vehicle, he'll get a warning chirp or a full siren blast. The security system "brain" decides which sort of warning to give based on the severity of the tampering and the type of sensors the thief trips.
When you return to your car, use the remote to disarm the system and unlock your doors or pop open the trunk. You can even use the remote to sound the siren if you can't find your car or if someone is bothering you.
Crime Guard harnesses make your security system installation a lot easier
For most vehicles, the installation begins with a Type A harness that makes connections for +12 volts, ground, starter disable and ignition — saving you time and effort on your installation. Connect a couple of sensors and you've got basic protection. (In some cases, you may need to splice a few wires to get all the features you want.)
Additional harnesses may also be available for your vehicle:
for remote door-lock control
for parking-light flash
for dome light activation
for trunk or hatch release
for remote engine start
如何选择汽车安全
如何查找：
运动传感器可让您离开自上而下或Windows开放。他们也很好的保护货物领域面包车和卡车。这些传感器会发出警报，如果有人侵入您的空间。
玻璃打破传感器发出警报时， “听到”一个窗口打破。这种保护您免受小偷谁相信他可以绕过你报警不开门。
驾驶员侧的优先解锁，您可以打开你的门没有打开等。您可以在您的车辆没有让您的警惕。
远程输出允许您扩大警报的能力新的功能，比如远程起动或窗口控制。最警报器来至少有一个遥控器的输出。考虑到您希望的安全系统做（在现在和将来）当选择了警钟。
当犯罪卫队互连利用可为您的车辆，犯罪卫队的安全系统更容易安装超过其他品牌。
为什么买一辆汽车的安全系统？
保护自己和你的家人，以及您的汽车和您的汽车音响都出色的原因，投资于汽车安全系统。此外，多数保险公司提供了降低利率的车辆配备了警钟-它愿意支付的本身！
一个良好的安全系统不仅使您的汽车更难以窃取，但也更容易生存。小遥控器，您随身携带您的钥匙，您可以胳膊和解除警报，锁定和解锁的门，甚至ZAP公司打开你的躯干。怎么为方便？
免费布线指导与您的系统！
对于大多数汽车至1995年，克拉奇菲尔德给你一张，告诉的位置和颜色的电线您需要访问您的车辆。对于大多数汽车在1995年之后，我们很乐意提供布线信息通过电话，传真，或通过电子邮件。这有用的信息是免费的安全系统购买！您还可以免费出版物，如何安装汽车安全系统。
我们帮助您安装您自己的震惊和保存
当您以您的报警从克拉奇菲尔德，您还可以指望独家免费电话技术支持，我们为我们的客户提供。 16个小时，一周7天，有经验，耐心专家愿意回答您的问题（只要您的发票方便打电话时） 。这就像有一个亲期待您的肩上，而你的工作！
如何保障制度的典型工程
当您离开汽车，按钮，武器系统。你听到你的门锁，警报器啁啾告诉您您的车辆受到保护。如果你不小心留下了门半开着，系统提醒您以不同的音色。
当你走开，你有信心，有保证。的第一件事，一个小偷把他的做法时，你的车是一个闪烁的LED ，告诉他您的系统是武装冲突。通常，这足以让他目光转移到其他地方。
如果小偷试图篡改你的汽车，他会得到一个警告，啁啾或完整警报器爆炸。安全系统“大脑”决定哪些类型的警告的基础上给予的严重性篡改和类型的传感器小偷旅行。
当您返回到汽车，使用遥控器，解除您的系统和打开门或弹出打开行李箱。您甚至可以使用遥控器发出警报，如果您找不到汽车或如果有人打扰你。
犯罪卫队利用使您的安全系统安装更容易
对于大多数车辆，安装一开始就利用A型，使连接12伏特，地面，禁用和点火起动器-节省您的时间和精力，在您的安装。连接了几个传感器和你有基本的保护。 （在某些情况下，您可能需要剪接一些电线的所有功能你想要的。 ）
更多的利用也可以为您的车辆：
远程门锁控制
停车灯闪光
激活的顶灯
干线或舱口释放
远程发动机启动
㈡ 关于汽车英语的文章
Cars in America(美国的汽车)
Cars in America
Cars are an important part of life
in the United States. The car made the United
States
a
nation
on wheels.
And
it helped to make the United States what it is today.
There are three main reasons why the car became so popular in the United States. First of all the country is a huge one and Americans like to move around in it. The cars provide the most comfortable and cheapest form of transportation.
The second reason that cars are popular is the fact that the United States never really developed an efficient and inexpensive form of public transportation. Long-distance trains have never been as common in the United States as they are in other parts of the world. Nowadays there is a good system of air service provided by planes. But it is too expensive to be used frequently.
The third reason is the most important one, though. The American spirit of independence is what really made cars popular. Americans don't like to wait for a bus, or a train or even a plane. They don't like to have to follow an exact timetable.And the freedom a car gives them is what Americans want most to have.
The decrease of gas supplies has caused a big problem for Americans. But the answer will not be a bigger system of public transportation. The real solution will have to be a new kind of car, one that does not use so much gas.
美国的汽车
汽车是美国生活的重要组成部分。汽车使得美国成为轮子上的国家，它也帮助美国成为现在的样子。
汽车在美国如此盛行有三个主要原因。首先这个国家地域辽阔，而美国人喜欢在其间来回走动。汽车提供了最舒适最便宜的交通方式。
汽车如此盛行的第二个原因是美国从未真正发展过有效廉价的公共交通这一事实。美国的长途火车从未像世界上其它地方那么普及。如今飞机提供了空中服务的良好体系。但是飞机太贵了，不能频繁使用。
而第三个原因是最为重要的。
美国人的独立精神是使得汽车盛行的真正原因。
美国人不喜欢等公共汽车、火车甚至飞机。他们不喜欢必须遵循精确的时间表。汽车给予他们的自由正是美国人最想得到的。
汽油供给的减少已经给美国人带来了巨大的问题。但答案不是发展更大型的公交体系。真正的解决方式必须是一种新型的汽车，那种不需要使用很多燃料的汽车。
Car Pollution
Each year there is an increasing number of cars on the roads as millions of new cars are proced. One out of six Americans works at making cars, driving trucks, building roads or filling up gas. Americans couldn't live without cars!
Most Americans would find it hard to imagine life without a car. However, some have realized the serious problem of air pollution caused by cars. The polluted air becomes poisonous and dangerous to health.
One way to get rid of the polluted air is to make a car without pollution. But to build a clean car is easier said than done. Progress in this field is slow.
Another way is to replace car engines with something else. Inventors are now working on steam cars as well as electric cars. Many makers believe that it will take years to develop a practical model for us.
To prevent the world from being polluted by cars, we have to make some changes in our lives. Americans, for example, have to cut down on the number of their total cars.They are encouraged to use bicycles, which are thought to help keep the air clean.
But this change does not come easily. A large number of workers may find themselves without jobs if a car factory cioses down. Thus the problem of air pollution would become less important than that of unemployment. Although cars have led us to a better life, they have also brought us new problems.
汽车污染
上路的汽车数量逐年增长，同时，每年都会生产出几百万辆新车。在美国，每六个人中就有一个从事与汽车相关的工作：造车、开车、修路、加油等等。
离开汽车，美国人无法生活!
大部分美国人简直无法想象没有车的生活会是什么样子。但是一些人也已经意识到汽车造成的空气污染已成为严重的问题。被污染的空气具有毒性，并且危害健康。
解决空气污染的方法之一就是制造无污染汽车。但是生产清洁汽车说来容易做来难。
目前，这一领域的进展十分缓慢。
另一个方法就是使用其他东西替代汽车发动机。发明家正在研制蒸汽汽车和电车。但是许多厂家认为我们可以使用的实用型汽车的诞生可能还需要几年时间。
要想阻止全球化的汽车污染，我们需要对自己的生活方式做出适当的改变。例如，在美国，需要缩减汽车总量。鼓励人们使用有助空气清洁的自行车。
但这种改变不能一蹴而就。一旦汽车工厂关闭，就会有大量工人失去工作。与失业相比，空气污染似乎就不再那么重要了。尽管汽车为我们带来了更加舒适的生活，同时，它也带来了新的问题。
㈢ 急需一篇关于汽车的英语文章
The lighter drive 更轻便的驾驶理念
Electric cars made from carbon fibre will be safer and go farther
电瓶汽车+碳纤维材料=安全，耐用
They look safe in thereMARK WEBBER has a lot to thank tiny strands of carbon for. When his Formula 1 car cartwheeled in a spectacular 306kph (190mph) crash at the recent Valencia Grand Prix, what helped him to escape unscathed was the immensely strong carbon-fibre “tub” that racing drivers now sit in. Carbon fibre is an expensive alternative to making things in steel or aluminium, but besides being extremely strong it is also very light. It is found in high-performance parts, like aircraft wings, bits of supercars and the frames of pricey mountain bikes. But if work by Germany’s BMW proves successful, it could also become the material of choice to mass-proce electric cars.
6月，F1瓦伦西亚大奖赛发生了惊人一幕：以每小时306公里（190英里）行驶在赛道上的马克�6�1韦伯发生了严重的翻车事故。奇迹的是，韦伯本人毫发无 伤。奥妙之处就在于当下流行于F1的——碳纤维底座。虽然与铁，铝相比，它的造价较高，但是抗压及轻便性都远远好于铁和铝。目前，炭纤维材料还大多使用在 高精度领域，如飞机机翼，F1赛车，或是私人山地车等。不过这一传统观念可能会被宝马公司打破，一旦试验成功，那么碳纤维就可以率先广泛应用在电动汽车领 域。
The Bavarian carmaker plans to launch a new plug-in electric car in 2013. It will be one of the first designed from scratch to use an electric motor rather than being converted from an existing model. Recing the weight of this four-seater car, known as the Megacity concept, will be crucial to improving its performance and range. So BMW is planning to use no steel at all. The Megacity will be built as two moles: an aluminium chassis will contain the electric drive-system and battery, and a body made almost entirely of carbon fibre will be fitted onto it.
德国汽车制造商正计划将在2013年推出一款电瓶可拆卸式环保车。这并不是从现有车型改装而来，而是设计师卧薪尝胆的一次全新尝试。更轻便的4人坐驾，完 全符合现代城市环保理念，这款“无铁”车型的设计，彰显出了它的与众不同与理念上的更新换代。但是这样一个设想目前还处在起步阶段，或许成功的那天，汽车 铝制底盘上充电驾驶装置与设备，及全身碳纤维的设计工艺，能够更好的诠释大城市的环保概念。
Carbon fibre is 30% lighter than aluminium and 50% lighter than steel. The fibres are extremely tear-resistant. When woven into a lattice structure and impregnated with resin they can proce a part that is stronger than steel. The trouble is the process is labour-intensive and slow, not least because components may have to be cured for hours under pressure in massive ovens called autoclaves. For carmakers, used to stamping out steel body-parts in a few seconds, this has ruled out carbon fibre for high-volume proction. BMW, however, aims to change that.
碳纤维比铝轻便30%，是铁的50%。同时，由于纤维具有极强的抗断裂性，再融入树脂形成晶体结构后，那么它的强度就要超过铁。但是这道工序属于劳动密集 型，效率相对较低，以前车用铁制品的切割仅需要几秒钟时间就能完成，而现在则需要在高压炉内高温锻造几个小时，因此，大量生产碳纤维的可能性不高。不过， 宝马公司目前也正在试图改变这一情况。
Its proction line starts with a so-called precursor: a fibre spun from a polymer. This is carbonised by heating it in multiple stages to leave indivial carbon fibres just seven microns (0.007 millimetres) thick. Around 50,000 of these fibres are bundled together into a yarn which is then made into a fabric. This can be cut and handled like a textile. Strips of fabric are then overlaid to align their fibres in such a way to maximise their load-bearing characteristics as required—in effect tailoring components like a bespoke suit.
现在，宝马生产线守开先河，将聚合体加工成纤维状，这个碳化过程需要在高温下进行几道工序，最后产生的碳纤维厚度只有7微米（0.007毫米）。然后，大 概将5000根这样的纤维拧成一股就成了纤维织物，再将这样的纤维根据它的陌生能力将它切割成最合适的尺寸，实际上，这个步骤与量体裁衣有异曲同工之妙。
Along come the robots 自动机将助一臂之力
BMW uses molds, heat and pressure to proce contours in the fabric. Resin is then injected into the molds to bond the fibres together. How the resin flows through the fibres is crucial; it has to be done quickly and leave no area untreated before it starts to cure. A release agent in the resin migrates to the surface to prevent the component sticking in the mold. The whole process, which can be handled by robots, is completed in minutes.
然后，再利用模具与高温将纤维织物打造成型。首先，将树脂注入模具粘合纤维，这里有两个细节非常关键，一是动作要快不能拖泥带水，二是在没有粘合之前确保 模具内的树脂流向均匀。树脂中混有的隔离剂此时发挥功效，避免了纤维与模具发生粘连。整道工序，在自动仪器的协助下，仅需几分钟便可完成。
The resulting carbon-fibre parts are bonded together to construct the body of the car. Besides their lightness, BMW’s experimental vehicles have exceeded expectations in crash tests, says the company. During front- and rear-impact-tests the aluminium chassis crumples to absorb energy, but leaves the rigid carbon-fibre passenger compartment intact. Even extreme side-impacts protected the crash mmies and the battery (automatically switched off when the airbags trigger). In many cases crash damage is reparable by cutting out broken sections of carbon fibre and bonding in new ones.
此时的碳纤维就可以应用于汽车制造。宝马公司声称：除了超轻便的特性之外，碳纤维的抗挤压能力也令人惊叹。在对车头车尾抗冲击测试中发现，一方面是铝制底 盘受到挤压而变形，缓冲了部分能量，而坚硬的碳纤维能够保证车身安然无恙。即使是侧面来的强力冲击，也能够有效保护车厢内假人模型及电瓶毫发无伤（当然， 气囊装置启动电瓶能够自动断电）。即便是车身有所受损，也不用担心，切割掉受损部分再粘合上新部件，完全可以让车体恢复原状。
At some point, however, carbon-fibre cars will be scrapped. Steel and aluminium is easy to recycle, but carbon fibre is tricky. Carmakers are working with aerospace firms on ways to do it. BMW has pioneered a process to reuse offcuts by breaking them up with heat to turn them back into raw material. This can be used to make composites with about half the strength of new carbon fibre.
铝的回收再利用技术已经非常成熟，但是从某角度来说，碳纤维这方面的技术还有待研究。目前，制造商正和宇宙空间机构合作，试图填补这一空白。眼下，处理碳 纤维“边脚料”最先进的方法还是来自宝马公司，他们通过高温分解，能够使之退回成未加工状态。通过此种方法生产出的复合材料也具有碳纤维一半的硬度。
Another advantage of a carbon-fibre body is that it will not corrode. So, apart from the battery wearing out in ten years or so, electric cars could last for decades (electric motors need little servicing). This will make it even harder for car designers to persuade those driving electrically to trade in their rustless, tough-as-old-boots vehicles for a new model.
碳纤维的另一优势在于不易腐蚀，如果不考虑电瓶10年左右的使用寿命，这种碳纤维电瓶汽车可以使用长达几十年（当然马达还是需要检修的）。与结实耐穿的靴 子让人不忍丢弃一样，当设计理念再有突飞猛进的发展时，如何让使用者放弃碳纤维电瓶汽车，设计者可要好好动一番脑筋喽。
英文附带汉语拼音，希望对你有所帮助。
㈣ 汽车发展的英语作文
汽车发展的英语作文：
With the development of modern instry,more and more families are able to have their own cars.But,seeing the problems like air pollution and the rection of resources,some people appeal for the rection of private cars.Still,I think there is every reason for the even faster development of the car instry.
Thanks to the development of the car instry, we do not have to cram in the buses, but can enjoy in our free travel.With our own cars, we can go to more places in a leisure way. Transportation becomes comfortable and easy.
But there are those who worry that too many cars may cause more traffic problems, serious:air pollution and the exhaustion ofresources, While these problems may be true, they can be solved and some are being solved.
For example, we can invent cars that can save fuel or use other types of energy so that cars can still be used even though resources run short. To rece pollution, people have manufactured many cars without pollution. We can relieve the traffic pressure by building more and more roads or-adopt computer-monitored automated highways.
For all the contemporary problems cars bring, no one can deny the convenience cars bring us and ignore the effort that we make to solve these problems. Therefore,the development of the car instry is necessary, and it should develop as quickly as possible.
译文
随着现代工业的发展，越来越多的家庭能够拥有自己的汽车。但是，看到空气污染和资源减少等问题，一些人呼吁减少私家车。尽管如此，我认为汽车工业有理由更快地发展。
由于汽车工业的发展，我们不必挤在公共汽车上，而是可以享受我们的免费旅行。有了我们自己的汽车，我们可以以休闲的方式去更多的地方。交通变得舒适和方便。
但也有人担心太多的汽车可能会导致更多的交通问题，严重的是：空气污染和资源枯竭。虽然这些问题可能是真的，但它们可以解决，有些问题正在得到解决。
例如，我们可以发明节省燃料或使用其他能源的汽车，这样即使资源短缺，汽车也可以继续使用。为了减少污染，人们制造了许多无污染的汽车。我们可以通过修建越来越多的道路或采用计算机监控的自动化公路来缓解交通压力。
对于汽车带来的所有当代问题，没有人能够否认汽车给我们带来的便利，忽视我们为解决这些问题所做的努力。因此，发展汽车工业是必要的，应该尽快发展。
㈤ 汽车的好处 英语作文
With the development of the modern technology,private car is no longer a luxurious thing for ordinary people,more and more people drive to work instead of going by bus.
The popularization of private car has many advantages.
随着现代科技的发展,私人汽车对普通人来说已不再是奢侈品,越来越多的人们自己驾车上班而不是选择乘坐公共汽车.私人汽车的普及有许多好处.
First, it is very convenient and time-saving ,you can drive your own car to the workplace instead of waiting for the crowded bus and afraid of being late for working.Second,it can also improve the traffic structure,and help to mitigate the stress of the traffic.Third, the popularization of private car can help to promote the car instry and any other interrelated instries.
首先,这很方便省时.你可以自己开着车前往工作地点,不必等侯拥挤的公交车,而且担心会迟到.第二,这也有利于优化交通结构,帮助减轻交通压力.第三,私家车的流行有助于汽车产业及其他相关产业的发展.
I believe that in the future the private car will become the most important vehicle and we cann't live without it.
我相信不久的将来私家车会成为最重要的交通工具,我们日常生活都会离不开他.
㈥ 论文《我在<汽车专业英语>学到了什么》2000字
论据
是支撑论点的材料，是作者用来证明论点的理由和根据，分为事实论据和理论论据两种。
1．事实论据：事实在议论文中论据作用十分明显，分析事实，看出道理，检验它与文章点在逻辑上是否一致。（代表性的事例，确凿的数据，可靠的史实等）。事实论据又包括事例和数据。
2．理论论据：作为论据的理论总是读者比较熟悉的，或者是为社会普遍承认的，它们是对大量事实抽象，概括的结果。理论论据又包括名言警句、谚语格言以及作者的说理分析。
使用论据的要求：①确凿性。我们必须选择那些确凿的、典型的事实。引用经过实践检验的理论材料作为论据时，必须注意所引理论本身的精确涵义。②典型性。引用的事例应该具有广泛的代表性，代表这一类事物的普遍特点和一般性质。③论据与论点的统一。论据是为了证明论点的，因此，两者联系应该紧密一致。
论证
论证是用论据来证明论点的过程。论证的目的在于揭示出论点和论据之间的内在逻辑关系。
（一）议论文的论证一般分为立论和驳论两大类型。
①立论是对一定的事件或问题从正面阐述作者的见解和主张的论证方法。
表明自己的态度时，要注意以下三点：
1)这些看法和主张必须是经过认真的思考或者一定的实践，确实是自己所独有的正确的认识和见解，或者是切实能解决实际问题的主张。要使读者感到有新意，增长知识，提高对事物的认识。
2)必须围绕所论述的问题和中心论点来进行论证。开篇提出怎样的问题，结篇要归结到这一问题。在论证过程中，不能离题万里，任意发挥，或者任意变换论题。如果有几个分论点，每个分论点都要与中心论点有关联，要从属于中心论点。所有论证都要围绕中心论点进行。这样读者才能清楚地了解分论点和中心论点。议论文的逻辑性很强，论证必须紧扣中心，首尾一致。
3)“立”往往建立在“破”的基础之上。在立论的过程中，需要提到一些错误的见解和主张，加以否定和辩驳，以增强说服力，使读者不会误解自己的观点。
㈦ 急急急！高分求有关汽车的技术方面的英文论文，最好还有中文翻译！
There will always be that when you own something when you do not think it would be valuable, but also do not see the value of it, but when you lose it when it come to repentance, but that at the moment when the lateness of the hour, too late for regrets and. I now have such a similar feel.
A week-long automotive engine disassembly internship is over, memories of this time, he reluctantly are true. Wanted to be back in a week ago, then put in every day practice as seven hours to 27 hours use. This is true, this internship opportunities for me are too precious a true.
In this internship, I learned about auto engines knowledge, are ever at a lesson on what can not be compared. And I once again felt the profound theoretical and practical combination of the need.
Teacher because of the arrangement to the engine of our components are Santana 2000 engine. First of all, for the automotive engine theory of knowledge, I understand that:
Santana in Germany Volkswagen Ltd. 1982 procts. The company entered Shanghai in 1983, to cooperate with the development of our country has been the development of three generations - four generations of proction lines, and in 95 years will be Santana 2000 Electronic Fuel injection system into the market.
The main parameters of motor vehicles including technical parameters, the basic parameters, engine and chassis parameters parameters. Structure for the JV type engine, the combustion chamber for the ball flat, so that the function of strong squeezing gas area, to rece fuel consumption and air pollution Valve for overhead camshaft type, camshaft push rod directly. Advantages of simple structure, the inertia of small parts, the system stiffness, and improve the effective engine speed. Valve for the hydraulic rod to mention, the automatic adjustment of valve clearance. Intake system has electric heaters and temperature control the intake valve, you can ensure that a smooth start and shorten the warm-up time. Closed water cooling system uses forced circulation.
The basic structure of the modern automobile engine from crank linkage, valve body, transmission system, lubrication system, cooling system, ignition system, start the Department of the composition. Linkage crank engines are energy conversion and transmission of power institutions. Valve bodies are engines of ventilators, ventilation process: on time and turn off the control valve to ensure full combustion gas mixed with gas and emissions. Supply lines are guaranteed to give a total cylinder fresh combustible mixture and export emissions, and in accordance with the different engine operating conditions the supply of different quantity and concentration of combustible gas mixture.
中文翻译如下：人们总说，当你拥有一样东西的时候，你会不觉得的它的珍贵，也看不到它的价值所在，但是当你失去它的时候才恍然悔悟，此刻却以为时已晚，后悔莫及。我现在就有这么一种类似的感受。
为期一周的汽车发动机拆装实习结束了，回忆这段时光，竟真的是恋恋不舍。恨不得能回到一周前，然后把每天实习的7个小时当成27个小时来用。确实如此，这次实习的机会对我来说真的是太珍贵了。
在这次实习中，我学习到的关于汽车发动机的知识，是在以往任何一节课上都不能所比拟的。而我也再一次深刻感受到了理论和实践结合的必要性。
由于老师的安排，我们组分到的发动机是桑塔纳2000型发动机。首先，对于汽车发动机理论知识的学习，我了解到：
桑塔纳轿车是德国大众汽车有限公司1982年的产品。该公司于1983年进入上海，同我国进行合作开发，目前已发展为三代-四代生产线，并于95年将桑塔纳2000电控汽油喷射系统投入市场。
汽车的主要参数包括技术参数、基本参数、发动机参数和底盘 参数。 发动机结构为JV型，燃烧室为扁球形，这样可以则功能强挤气面积，减低油耗和大气污染配气机构凸轮轴为顶置式，凸轮轴直接推动连杆。优点为结构简单、零件惯性小、系统刚度大、有效提高发动机转速。气门提杆为液压式，气门间隙自动调节。进气系统有电加热器和温度控制进气阀，可以确保汽车顺利启动和缩短暖机时间。冷却系统采用闭式水冷强制循环。
现代汽车发动机基本结构由曲柄连杆机构、配气机构、传动系、润滑系、冷却系、点火系、启动系组成。曲柄连杆机构是发动机进行能量转换和传递动力的机构。配气机构是发动机的换气机构，换气过程：控制气门按时关闭，保证气配时充分燃烧混合气和排放废气。供给系是保证向气缸共给新鲜可燃混合气和导出废气，并按照发动机不同工况供给不同数量和浓度的可燃混合气。
这篇挺好的啊，嘻嘻
㈧ 汽车发展史英语论文300字
汽车，即本身具有动力得以驱动，不须依轨道或电力架设，得以机动行驶之车辆。广义来说，具有四轮行驶的车辆，普遍多称为汽车。虽然，长久以来学术各界对“谁是第一位汽车发明者”皆有不同的看法及论述，未有完全一致性的看法，但是，绝大部份学者皆将德国工程师卡尔·本茨视为第一位发明者。美国人亨利·福特首先大量生产平价汽车，是使汽车得以普及化的人。
汽车（Car，卡尔·本茨发明）是一种现代交通工具，英文原译为“自动车”，在日本也称“自动车”（日本汉字中的汽车则是指我们所说的火车），其他文种也多称为“自动车”，只有在中国例外。
由动力驱动，具有四个或四个以上车轮的非轨道承载的车辆，主要用于：
——载运人员和/或货物（物品）；
——牵引载运货物（物品）的车辆或特殊用途的车辆；
——专项作业。
本术语还包括：
a）与电力线相联的车辆，如无轨电车；
b) 整车整备质量超过 400kg的不带驾驶室的三轮车辆；
c) 整车整备质量超过 600kg的带驾驶室的三轮车辆。
㈨ 求一篇关于汽车的英文论文
Guide the future development of the concept of automotive vehicles
Summary of high-tech popularization and application makes the pace of replacement automotive procts faster and faster, also makes the Chinese automotive instry independent research and development level and technical level with the international on the growing gap in the development of the concept car is even more the difference between the very poor. WTO accession for China car alarm sounded, but also tremendous opportunity, our government, as well as automotive companies must increase their research and automotive design input, to establish a positive right car design concept, the concept of extensive vehicle design .
Keywords concept car designed to develop science, technology and culture
Technology start-ups
PIONEERINGWITHSCIENCE & TECHNOLOGYMONTHLY
The 21st century, in order to lead and performance of the new century, the development of future automotive trends, a number of international auto companies, one after another at the major auto show in the world to launch its own concept car and new car. There is, however, must be caused by a phenomenon we are concerned about: As a car big country, but few Chinese car makers to launch its own development and design concept cars. Are one of the main reasons for China's automotive design concepts and methods, as well as the lack of research and development of concept cars do not pay enough attention. It can be said that a self-designed and self-development capacity of the automobile instry, it is difficult to say that is a complete auto instry. Thus we must intensify the study of automotive design and input, to establish a positive right car design concept, the concept of extensive vehicle design.
1 "concept car" is defined
The so-called "concept cars" that have not yet begun to enter the market with a design unique and must advance the awareness of the new models. Its main characteristics are: it must give people are to consider that can guide the new concept cars. It has just the design in general at the time, people's aesthetic ideas, the purchasing power and even the level of motor vehicle manufacturing instry is also unbearable. Generally it will be it avant-garde design, innovative materials, bold use of a more perfect performance, the new car interior design indicates that the direction of development of the automobile instry.
Some of the world's largest car company every year to spend many human and material resources to design their own concept car, and in some large auto exposition on display. It can be said that with the continuous introction of concept cars, the near future may occur on some concept cars have today, some features or functions of the car. But not necessarily a concept car will each eventually evolve into mass proction cars to enter the market, the majority of concept cars are finally only a "concept" for people to discuss the matter.
2 concept car, in reality the meaning of
2.1 concept car design and development of automotive procts reflected the development trend of
2.1.1 the performance of the highest scientific level and the most sophisticated technology in concept car
At the International Motor Show the previous, and the major automotive companies and the introction of the concept of lot of cars, concept cars to remove these sleek, but also more integrated into a large number of high-tech and modern means of the introction of the concept car to become Motor Company takes pride in the idea of the concept of automotive research and development are often accompanied by new technologies and the use of new materials with certain forward-looking, herald a new stage of development and the beginning for this reason that car companies the development of the concept car has invested great human and material resources, with its show car the company's strong momentum of development.
Various high-tech applications, making car slowly evolved into information, communications, entertainment centers and the exchange of information with the outside world, the computer functions and Internet all-round involvement, in-car information and entertainment equipment, advanced navigation equipment, real-time traffic information function of the growing popularity of the inevitable demand of these high-tech automotive designers transcend time and space to establish a new value system, the emergence of various new technologies for the automotive design freely given to a wider space. Function of motor vehicles for further expansion and development of the concept car, the car graally from the cold machinery into human information exchange platform, if the concept car has its own way of expressing their emotions with pregnant, anger, sadness and joy, such as facial expression make the concept car than in high volume proction cars, become a new symbol of time. Concept Car Design of automotive procts have greater and greater impact, it represents the development direction of the automobile instry and the basic idea of the automobile company design standards and a symbol of scientific and technological level.
2.1.2 human physiological needs and psychological needs of the largest Satisfied --- Automotive Engineering in the Ergonomics
Ergonomics are 50 in the early 20th century with the rapid development of a new subject with the aim of research, design and engineering technology to solve the relationship between the human body. Car body design in ergonomics, it is to people (drivers and passengers) as the center, from the body's physiology, psychology, and exercise the human body, the research body design, layout and equipment in terms of how to adapt to people need to create a manipulation convenient, safe, reliable, beautiful and comfortable driving environment and take the environment, that is the best person to design a - vehicle - environment system.
Automotive Design Human-Computer analysis of the first ministries to human size required for measurement, statistics and analysis, concting interior layout design as a basis to determine the effective space vehicle, as well as parts, assemblies (seats, dashboard , steering wheel, etc.) position and dimensions of the relationship between layout. Through the study of human physiological structure, so that the seat design in full compliance with the requirements of human comfort. Based on the manipulation of human manipulation of the scope and power to determine the layout of the manipulator position and force size, so that when the human body to manipulate natural, rapid, accurate and lightweight, so as to rece the degree of manipulation of fatigue. Through the visual characteristics of the human eye, the effect of vision research, testing, checking driver information system, to ensure that drivers have access to proper driving information. Exercise in accordance with the characteristics of the human body to study the automobile collision on the human body, a reasonable protection, the right to determine the hinged point seat belts and binding on the human body to study the vibration of the impact on ride comfort, research on and get off at the convenience of passengers, and door openings in order to determine location and size. According to the body's physiological requirements, reasonable certainty that the air-conditioning system and layout. Research on the psychological characteristics and requirements, to design a comfortable, beautiful, relaxed by the environment.
2.1.3 virtual proct development technology
At present, a growing number of automotive design companies and manufacturing companies to start using virtual proct development technology, using three-dimensional virtual reality 3D technology development concept car. Opel car using 3D virtual reality technology concept car design and development. Designers can experience floating in the air of a virtual image of car design and manufacturing, saving considerable development costs, and plans to be extended to its North American assembly plant to 14. Britain's Rolls-Royce, Renault, France, Germany Audi, as well as Italy, Sweden and other auto plants are actively engaged in this virtual design and manufacturing.
Over the past automotive research and development centers to develop new or modified are first shaped body sludge physical model, is extremely time-consuming modifications. Now automotive R & D, in particular the development of concept cars are increasingly seeking the shortest development time. If the introction of virtual proct development technologies, as long as the computer input data to construct a model figure model, in the laboratory can show an ideal vehicle images, as long as the engineers wear eyepiece, you can see clearly, there is such as a car in front of us true, after all the discussion of design engineers modifications, you can quickly design an ideal new car. Stereotypes, the computer can use the data, outsourcing trial and trial fitted the new parts and components, assembly achieve zero error, and the development of aging more rapidly than in the past.
2.1.4 the concept of green environment-friendly vehicles to the development trend of
Since entering the 21st century, countries around the world have been proced about 1.5 billion vehicles, according to expert estimates that in 2010 global vehicle proction will reach 75 million. People sigh at the rapid development of automobile instry, but also an increasing awareness of pollution from motor vehicles to harm human beings, so many countries of the vehicle to develop environmental protection measures and regulations to protect the environment for human survival, so automotive environmental protection the design of this new concept car design to be placed in a prominent position on the essential.
Improve energy efficiency, improved engine configurations, including electronically controlled fuel injection system, secondary air injection, thermal reactor, exhaust gas recirculation system, catalytic purification device, crankcase ventilation systems, fuel evaporation control system.
The development of alternative fuels, research and development of new environmentally-friendly energy, including natural gas, liquefied petroleum gas, fast charging batteries, hybrid power, hydrogen fuel.
In the automotive manufacturing process, use of green materials, green packaging, green manufacturing processes and equipment and equipment green.
Green car recycling manufacturers.
2.2 Concept car indicates road traffic in the evolution of human behavior
2.2.1 Concept foretells the future of the way road traffic trends
Along with the development of automobile, the vehicle status is also slowly change, now car in people's minds as a symbol, a symbol of wealth and the embodiment of a status, but the car as a way of the nature of road traffic has overlooked. Concept car design is based on the nature of a car's innovative design predictability. Concept car at the design of the way through the daily life of mankind, human beings in road traffic in the use of methods such as behavior and ways of life all aspects of prediction and analysis, it is envisaged to solve the future in the way road traffic between the object harmonious factors. Strong and high-speed in today's technology enables the development of means of transport have a much broader space for development, more and more high-tech continuously applied at a new car. At present many of the world's major auto companies have realized that the development of the next car is no longer the biggest obstacles are technical limitations, but limits the designers thinking.
Now appearing in major auto show concept cars are generally two types: one is based on the latest available technology can achieve another kind of concept cars are those who put forward some innovative technology options but is still in the research phase of the concept car. Able to express their feelings such as car, truck can random shell replacement car, be able to easily change the driving mode of motor vehicles, be able to swim in the water of the amphibious vehicle, able to fly in space vehicles, be able to change cars. Like from Toyota and Sony jointly developed by "POD" cars, will be able to through the car before the lights, mirrors, antenna, as well as the rear seat to the car owners to express their "feelings." Like Volkswagen's Seat International Auto Show in the United States on the introction of multi-functional concept car "Sal? Juancheng sa", there are sports, comfort and three kinds of urban-type driving mode selection for you.
2.2.2 Concept of culture differences in performance
The United States as a world leader in the auto instry, concept cars at the manufacturing are on the forefront in the world. At the United States because of cultural blending, collision, so the concept car embodies the greater the diversity of cultures; are also caused by a highly developed country commercial, commercial design and pragmatism prevailed, so the design is set up at a deep aesthetic Ethics on the real and solve practical problems. With the American cars are in sharp contrast to the Japanese concept cars. Japan as the world's output of the second car big country, its concept car many practical and imagination, technology is better than art, more concerned about solving technical problems, it can be said in Japan This is the premise of the concept of car design, each model is to solve one kinds of technical problems developed. The Japanese car model to maintain a small, simple, style characteristics of the economy and harmonious relations between man-machine deal with the Japanese are reflected as a delicate oriental thinking and compromise approach to solve the problem.
The United States put the design of commercial operation as an important aspect, Japan put out of Procts Designed to accelerate as a tool, Germany put Designed as a social and cultural foundation, while the French took the design as a designer of stage performance. From various countries so the concept of car design in different styles, we can see different countries, different concepts, as well as their different cultural backgrounds design.
3 Concluding remarks
The future of automotive design as the development of the inevitable progress of Automotive Technology with each passing day, many of the artistic style of the designer will make it even more widely and more strongly reflected in the car design, and give people a wider choice. Under high-tech, and personality of the car more humane 21st century will be the necessity of the development of the automobile instry, because it is consistent with human culture, the pursuit of indiviality and needs. Therefore, the increase in automobile design concept of the attention and input, will be the development of China's automobile instry has played a great role in pushing forward.
References
1尹定邦. Introction to Study Design [M]. Hunan: Hunan Science and Technology Press, 1999
2张洪欣. Auto Design [M]. Beijing: Mechanical Instry Press, 1997
3 Tang Jia-Ti, Han Xiao Jian had denitrification. --- Proct conceptual design theory, methods and techniques [M]. Beijing: Mechanical Instry Press, 2002
Tang Shu-Min 4. Concept cars and car design development and innovation [J]. Shenyang Institute of Aeronautical Engineering Journal, 2002 (6)
㈩ 求一篇关于汽车的英语文章，且需要翻译，约3000字左右。
The car since 1885, "the father of automobile" Karl Benzmade the world's first tricycle, automobile has become one of the indispensable traffic tools of modern. The car generally consists of four basic parts of the engine,chassis, body and electrical equipment. Engine is the power unit of the car, just as our heart; the chassis is equivalent to the human skeleton, to support, installation of car parts; all kinds of apparel automobile body like us, not only used for automobile body, also can be through a variety of different automobile brands and models;electrical equipment from power and two parts electrical equipment, it is like the brain nerve, command "heart"movement. Do you know? First steam car is made inBeijing of china. In 1672, Belgian missionary Nan Huairen,in Beijing to create steam powered mechanical device, has become the first car four wheel steam car. At that time,Watt wasn't born, compound steam engine than he made115 years earlier, Biximingn steam machine used in theearly 123 years, 150 years earlier than the train forStephenson, 200 years earlier than the Boolean forautomobile. Vehicle classification has many kinds, usually analysed by end use classification, can be divided into ordinary transport vehicle and special vehicle; according tothe power plant classification, divided into the steam engine, internal combustion engine vehicles, electric vehicles, solar car etc..
Modern cars bring convenience to humans has also brought pollution, more than a hundred years ago, the carrunning has been dependent on gasoline engine. Over the past ten years, the development of electric vehicle batterytechnology, graally approached us. Electric cars can be divided into three categories, hybrid, plug-in hybrid andelectric vehicle. They are using a power driven, in order to rece gasoline use, even without the use of gasoline.Influence of electric vehicles on the environment compared with the traditional car is small, safe and convenientenergy, is the social trend of future automotive development. In the development of automobile instry,people in constant progress, I believe there will be more and better the miracle appear!