ef·fi·cien·cy /ɪˈfɪʃənsi/
效率,效能,有效
efficiency
效率
efficiency
效率
ef·fi·cience ef·fi·cien·cy n.
1. The quality of being efficient or producing an effect or effects; efficient power; effectual agency.
The manner of this divine efficiency being far above us. --Hooker.
2. Mech. The ratio of useful work to energy expended.
efficiency of a heat engine, the ratio of the work done by an engine, to the work due to the heat supplied to it.
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efficiency
n 1: the ratio of the output to the input of any system
2: skillfulness in avoiding wasted time and effort; "she did
the work with great efficiency" [ant: inefficiency]