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1.a unit of work equal to the work done by one horsepower in one hour.
功的单位等于马力小时内做的功。收藏指正
2.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收藏指正
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