音标:[i'fiʃәnsi] ; 柯林斯词典等级:2 级;
n. 效率, 效能, 功效
[医] 效率, 效力
n. the ratio of the output to the input of any system
n. skillfulness in avoiding wasted time and effort
词型变化:名词复数形式 : efficiencies
考试类型:[四级/六级/考研/托福]
词性分布:
名词100%

efficiency的用法和样例:

例句

用作名词(n.)
  1. We must improve our efficiency as soon as possible.我们必须尽快地提高工作效率。
  2. Their labor efficiency is very high.他们的工作效率很高。
  3. The two companies consolidated for greater efficiency.这两家公司已合并以提高效率。
  4. This jet has a very high propulsive efficiency.该喷气机的喷射功率非常大。
  5. Various PA linearization techniques have been adopted to improve linearity and power efficiency of wireless transmitters.于是多种不同功率放大器的线性化技术被采用来改善无线发射机的线性度及效率。

常见句型

用作名词(n.)
  1. Friction lowers the efficiency of a machine.摩擦减低机器的效率。

词汇搭配

用作名词 (n.)
动词+~
  • achieve efficiency取得功效
  • add efficiency增加功效
  • promote efficiency促进效率
  • raise efficiency提高效率
形容词+~
  • fighting efficiency战斗力
  • high efficiency高效率
  • technical efficiency技术效能
介词+~
  • at efficiency以…的效率
  • in efficiency在效率上
  • work with great efficiency工作效率很高

经典引文

  • The penalty annexed to any law is an instance, not of its efficiency, but..of its failure.

    出自:R. Whately
  • He conducted his course at the University with an efficiency which shone beside the amateurish efforts of his colleagues.

    出自:F. Tuohy
【近义词】
【反义词】

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