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单词 efficiency
释义 efficiency
n. (pl. -ies)
  1. the state or quality of being efficient.
  2. Mech. & Physics the ratio of useful work performed to the total energy expended or heat taken in.
Phrases and idioms
efficiency bar a point on a salary scale requiring evidence of efficiency for further promotion.
Etymology: L efficientia (as EFFICIENT)
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更新时间:2025/3/10 19:31:03