efficiency

英 [ɪˈfɪʃnsi]

美 [ɪˈfɪʃnsi]

n.  效率; 效能; 功效; 提高功效的方法; 功率

复数：efficiencies　

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Collins.2 / BNC.2306 / COCA.3047

牛津词典

noun

• 效率；效能；功效
  the quality of doing sth well with no waste of time or money
  1. improvements in efficiency at the factory
     工厂效率的提高
  2. I was impressed by the efficiency with which she handled the crisis.
     她应对危机效率之高给我留下了深刻的印象。
• 提高功效的方法
  ways of wasting less time and money or of saving time or money
  1. We are looking at our business to see where savings and efficiencies can be made.
     我们正在研究我们的经营情况，看是否有可以节约和提高功效的地方。
• 效率；功率
  the relationship between the amount of energy that goes into a machine or an engine, and the amount that it produces
• 效率；功率
  the relationship between the amount of energy that goes into a machine or an engine, and the amount that it produces

柯林斯词典

• N-UNCOUNT 效率;效能;功效
  Efficiencyis the quality of being able to do a task successfully, without wasting time or energy.
  1. 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。
  2. ...energy efficiency.
     能效
• （物理学、工程学中的）效率，功率
  In physics and engineering,efficiencyis the ratio between the amount of energy a machine needs to make it work, and the amount it produces.

英英释义

noun

• skillfulness in avoiding wasted time and effort
  1. she did the work with great efficiency
• the ratio of the output to the input of any system

双语例句

• Energy efficiency in buildings and industry.
  建筑和工业领域的能效。
• The government should be guided by the criteria of efficiency and not State paternalism.
  政府应遵循高效原则，杜绝国家家长作风。
• Houses are graded from nought to ten for energy efficiency
  房屋按照能耗标准划分为0至10级。
• We improved the economic structure to raise the quality and efficiency of economic development.
  坚持调整和优化经济结构，着力提高经济发展的质量和效益。
• Increase efficiency and shorten the time limit for the project.
  提高效率，缩短工期。
• Revenues from 'green taxes' could then be channelled back into energy efficiency.
  从“绿色税收”得来的收入便可回过头来用于提高能效。
• The innovation raised ( or increased) efficiency fivefold.
  这项革新使工作效率提高五倍。
• It doesn't take much to improve the energy efficiency of your home.
  改善家庭能耗并非难事。
• Efficiency is life.
  效率就是生命。
• This not only brings efficiency with respect to memory utilization but also increases the processing speed.
  这不仅从内存利用率方面提高了效率，而且还提高了处理速度。