英语词汇“energy efficiency ratio”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	energy efficiency ratio
释义	WordReference Random House Unabridged Dictionary of American English © 2024 en′ergy effi′ciency ra′tio, Energya 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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