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单词 energy efficiency ratio
释义 energy efficiency ratio
 a measure of the efficiency of a heating or cooling system, as a heat pump or air conditioner, equal to the ratio of the output in B.T.U./hour to the input in watts: A high-efficiency home window air conditioner has an energy efficiency ratio of 7.5 or more. Abbr.: EER
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更新时间:2024/9/22 15:40:37