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

energy efficiency n. (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 of useful work performed or energy produced relative to the quantity of energy taken in or expended; (b) the economical use of energy, esp. electricity or fuel.

ΘΚΠ

society > occupation and work > materials > fuel > [noun] > efficient use of

energy efficiency1888

fuel efficiency1974

1888 Jrnl. Soc. Telegraph-engineers & Electricians 17 423 As far as I know, the actual energy efficiency has not been shown to be higher than about 60 per cent.

1922 Standards Amer. Inst. Electr. Engineers (rev. ed.) x. 108 The energy efficiency..represents the ratio of the energy delivered by the battery to the energy expended in charging it.

1972 H. Perry Conservation of Energy 2 The principal theme of this report is that energy conservation and energy efficiency are important issues.

1986 Options Aug. 33/1 Energy efficiency is not..a subject on which the British can talk with much authority.

2011 S. Coyle Sustainable & Resilient Communities iii. 78 Architects and..engineers collaborate to maximize energy efficiency in heating and cooling.

单词	energy efficiency
释义	> as lemmas energy efficiency energy efficiency n. (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 of useful work performed or energy produced relative to the quantity of energy taken in or expended; (b) the economical use of energy, esp. electricity or fuel. ΘΚΠ society > occupation and work > materials > fuel > [noun] > efficient use of energy efficiency1888 fuel efficiency1974 1888 Jrnl. Soc. Telegraph-engineers & Electricians 17 423 As far as I know, the actual energy efficiency has not been shown to be higher than about 60 per cent. 1922 Standards Amer. Inst. Electr. Engineers (rev. ed.) x. 108 The energy efficiency..represents the ratio of the energy delivered by the battery to the energy expended in charging it. 1972 H. Perry Conservation of Energy 2 The principal theme of this report is that energy conservation and energy efficiency are important issues. 1986 Options Aug. 33/1 Energy efficiency is not..a subject on which the British can talk with much authority. 2011 S. Coyle Sustainable & Resilient Communities iii. 78 Architects and..engineers collaborate to maximize energy efficiency in heating and cooling. extracted from energyn. < as lemmas
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> as lemmas