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TOEFL BNC: 2306 COCA: 3047
efficiency
ɪfɪʃənsi ɛˈfɪʃənsi ɪˈfɪʃənsi
Word forms: plural efficiencies
1 N-UNCOUNT 效率;效能;功效 Efficiency is the quality of being able to do a task successfully, without wasting time or energy. 效率;效能;功效
  • There are many ways to increase agricultural efficiency in the poorer areas of the world.

    有很多方法能够提高世界贫困地区的农业效率。

  • ...energy efficiency.

    能效

2 N-UNCOUNT (物理学、工程学中的)效率,功率 In physics and engineering, efficiency is the ratio between the amount of energy a machine needs to make it work, and the amount it produces. (物理学、工程学中的)效率,功率 [technical]
Trends of efficiency
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