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efficiency
/ә`fɪʃәnsɪ/ /ɪ`fɪʃәnsɪ/
(复数: efficiencies)
n.
The quality of producing desired results with the least effort or expense; capability.
效率；效能
Extent or quality of effectiveness.
效力。
Ratio of the useful work obtained from a machine to the energy supplied to it.
(机器之)能率。
efficiency apartment
【美】附有小厨房及浴室的小公寓。
Competency, ability, power.
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