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单词 horsepower-hour
释义

WordReference Random House Unabridged Dictionary of American English © 2024
horse•pow•er-hour  (hôrspou′ər ouər′, -ou′ər),USA pronunciation n. 
  1. Energy, Mechanicsa foot-pound-second unit of energy or work, equal to the work done by a mechanism with a power output of one horsepower over a period of one hour.
  • 1895–1900

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更新时间:2024/11/11 0:31:00