英德
有道
百度
谷歌
图片
维基
百科
汽车力学
mechanics of motor vehicle
- 这就好比热力学定律，为引擎的使用打下了理论基础，但你不能从热力学定律一步跨越到发明汽车，这中间还要经历成千上万的步骤。
It's like we have laws of thermodynamics that underlie the use of engines, but you can't just go from the laws of thermodynamics to an automobile; there are a million steps along the way. - 除非你在空气动力学实验室工作，否则没有人知道汽车在空气的阻力下行驶时，75英里的时速比65英里要多消耗多少能量，事实是这个差距非常大。
Unless you work in an aerodynamic lab, you don't understand how much more energy it takes to push a car through the air at 75 MPH than at 65 MPH, but it's huge. - 一些汽车和卡车司机紧随大型卡车之后行驶，利用空气动力学作用减少自身的燃油消耗，但是这种做法是相当危险的。
Some car and lorry drivers try to exploit this aerodynamic effect by tailgating big trucks to reduce their own fuel consumption. But it is exceedingly dangerous.
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