汽车的动力来自引擎,用什么来量度引擎的性能呢?一般多以功率(马力)、扭力衡量。什么是马力?说到车的性能,第一个想到的就是马力。什么是马力呢?马力是功率单位之一,而不是力量的单位。什么是功率呢?功率的定义是:单位时间内所作的功。换句话说,对车子来讲,就是在一定的时间内所产生供给车子运动的能量多少。再打个比方,同样的工作量,有人可能很快就能做完,而有的人则很慢, The power of the car comes from the engine, what is the measure of engine performance? Generally more power (horsepower), torque measurement. What is horsepower? Speaking of car performance, the first thought is horsepower. What is horsepower? Horsepower is one of the units of power, not the unit of power. What is power? Power is defined as: work done within a unit of time. In other words, to the car, it is the amount of energy generated by the car for a certain period of time. By analogy, the same workload, some people may finish soon, while others are very slow,