efficiency
efficiency
(pl. -ies)
(pl. -ies)
- [mass noun]the state or quality of being efficient
能力；效力；效能
greater energy efficiency.
更大的能效。
■[count noun]an action designed to achieve this
提高效力
the reforms will lead to efficiencies and savings.
改革将会提高效力和促进节约。
■[count noun](technical)the ratio of the useful work performed by a machine or in a process to the total energy expended or heat taken in
(技)效率
- late 16th cent. (in the sense 'the fact of being an efficient cause'): from Latin efficientia, from efficere 'accomplish' (see effect)
考试词汇表
