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.
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.
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