马力是功率测量的几个单位的名称。
Horsepower is the name of several units of measurement of power.
功率：做功的速率，用每单位时间内所做的功的量来表示，通常用瓦特和马力为单位。
Physics The rate at which work is done, expressed as the amount of work per unit time and commonly measured in units such as the watt and horsepower.
瓦特修改了原有的动力单位“马力”的计算方法，人们为纪念他，将功率的单位命名为瓦特。
Watt devised the original calculation to define 'horsepower' and the unit of electrical power was named after him.
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