英语词汇“θ217314”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	θ217314
释义	society > occupation and work > materials > fuel > [noun] > efficient use of (2) energy efficiency1888 (a) Science and Engineering the efficiency with which a machine, device, or process utilizes the energy it takes in; spec. the ratio of the quantity… fuel efficiency1974 the efficient use of fuel in an engine or other system; the capacity of an engine to obtain energy from fuel.
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