汽车英语的重要性论文题目

-- Scott Perl, Albuquerque, . A: Auto racers have told us the main advantage in filling tires with nitrogen instead of ambient air is that nitrogen tends to maintain more consistent tire pressure over a wide range of temperatures. As friction between the tire and pavement drives up the temperature, air with varying amounts of moisture content responds differently and can cause inconsistencies in tire pressure. While racing drivers are more likely to notice the advantages of nitrogen than everyday drivers, we haven't heard of any disadvantages to using it. Skeptics question the practice, noting that ambient air is about 80% nitrogen and that it expands and contracts at the same rate as pure nitrogen. A number of readers say there's no appreciable difference in how the tires will react if filled with nitrogen, especially in everyday use. Q: Is it safe to use cruise control in rain or on wet pavement? -- Scott Brake, Westminster, Calif. A: Car makers often warn that cruise control should be used only in light traffic on open roads and in good weather. There have been reports of accidents involving cruise control when the car lost traction -- or hydroplaned -- in slippery conditions. Some car makers warn that the steady throttle of cruise control -- like keeping one's foot on the gas -- could cause the wheels to spin when they hit a wet or icy patch of road. Car-company representatives say the cruise- control warnings reflect the fact that drivers should be particularly vigilant when conditions are less than ideal, and cruising along on what amounts to partial autopilot tends to lull some drivers into a false sense of security. Q: If an automobile manual suggests a certain weight oil (such as, 5W-30), would adding a quart of a different weight oil (say, 10W-40) between complete oil changes damage the car's engine? -- Gil Ehrenkranz, Potomac, Md. A: Probably not. But today's engines generally are more precisely engineered than those of 20 or 30 years ago. Many of us at some point have topped off our cars with whatever oil happened to be available without causing damage -- at least not that we know of. Auto makers, however, say modern engines can be more sensitive to a change in oil weight, and using the wrong oil, even in small amounts, can hurt an engine's performance and even cause harm. Q: What is a sequential manual transmission? How does it differ from an automatic or a standard manual transmission? -- Harry J. Jaffe, Germantown, Tenn. A: A sequential manual transmission is a gearbox that requires gear changes to be made in order (first to second to third), instead of having a shift pattern with a lever that allows the driver to skip gears. Motorcycles have used such transmissions for decades and racing cars began using them years ago because they allow quicker shifts. Shifting is usually done through levers, buttons or switches. The sequential transmissions advertised today -- mainly in high- performance cars such as Ferraris, Aston Martins and some BMWs -- are technically manual transmissions, except that the clutch and the gear changes are controlled electronically. The advantage is that gear changes can be made more quickly and precisely than a human shifting the old-fashioned way. Traditionalists say the downside is that they simply aren't as much fun to drive and require less driver skill.

With the development of society, more and more people live a rich life. They can not only have all kinds of outdoor activities, but also can afford to travel. Now even more and more can buy a private car. There are some advantages about it. First it can avoid being crowded on the bus. Second, it can reduce the pressure of going to work far away from home. Third, it is very convenient for those who like traveling. They can go where they want. But there are also some disadvantages. First, if there are more and more private cars, the traffic will be busier and busier. Second, the pollution will be more and more serious. Third, if there are more private cars, those who are not rich will be forced to buy one when they find many people have private cars. So in my opinion, if possible, we can take a bus to work. Then it can reduce pollution and the traffic won’t be so busy.

Uses the SCR post-processing technology to reduce the vehicle to discharge with the diesel engine By diesel car's energy conservation and environmental protection superiority

Nowadays,it is generally acknowledged that the automobiles make our life argue that they play an essential role in our modern life and we can not live well without drive their cars to go to work which saves more time and energy. 现在,人们普遍认为汽车给我们的生活带来了很多便利.有些人觉得在现代生活中汽车扮演着重要的角色,我们的生活不能没有汽车.人们驾驶自己的汽车去工作,从而节省更多的时间和精力. But some other people believe that a great many of problems can be brought by the of all,much tail gas released by cars harm pollutes the fresh air many cars result the roads in driving makes people crazy,which can account for so many traffic accidents. 但是另一些人认为汽车也带来了很多问题.首先,汽车尾气的释放严重危害了新鲜的空气.其次,汽车过多导致道路堵塞.最后,开快车让人疯狂,这可以解释很多交通事故发生的原因.As far as I concerned,it is no doubt that vehicles contribute to our economic development if we overuse it,many undesirable consequences can be surely caused,which contains highway accidents,air pollution and so at this moment,we must take measures to avoid these happen. 就我而言,我认为汽车有助于我们的经济发展是毫无疑问的.但如果我们过度使用汽车,会引起很多不良的后果,包括公路交通事故,空气污染等.所以在这一时刻,我们必须采取措施防止这些事件的发生.