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单词 kilowatt-hour
释义

WordReference Random House Unabridged Dictionary of American English © 2024
kil•o•watt-hour  (kilə wot′ouər, -ouər),USA pronunciation n. 
  1. Electricitya unit of energy, equivalent to the energy transferred or expended in one hour by one kilowatt of power;
    approximately 1.34 horsepower-hours. Abbr.: kWh, kwhr
  • 1890–95

Collins Concise English Dictionary © HarperCollins Publishers::
kilowatt-hour n
  1. a unit of energy equal to the work done by a power of 1000 watts in one hour
    Symbol: kWh
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