efficiency

C1 CET-4 Oxf 5000 大学 FREQ #11084 ★★☆☆☆

n. 效率, 效能, 功效 [医] 效率, 效力

发音

其它 /ɪˈfɪʃ.ən.si/

词形变化

efficiencies 复数 efficiencies

别名

efficience

教材释义与例句

名词

效率；效能；功效

释义与例句

n. C1 Oxf 5000
  1. 1.

    The extent to which a resource is used for the intended purpose.

    效率

    效能

    可数 不可数
  2. 2.

    The extent to which a resource is used for the intended purpose.

    The ratio of useful work to energy expended. Often given the symbol η.

    可数 不可数 工程 物理

    The efficiency of this loudspeaker is 40%.

  3. 3.

    The extent to which a resource is used for the intended purpose.

    The extent to which time is well used for the intended task.

    效率

    效能

    可数 不可数

    The efficiency of the planning department is deplorable.

  4. 4.

    The quality of producing an effect or effects.

    可数 过时 不可数
  5. 5.

    A one-room apartment.

    美国 可数 不可数

    I have an efficiency available June through July.

    fully-furnished efficiencies

词汇关系

名词

反义词 1

inefficiency

上位词 2

ratio skillfulness

下位词 2

economy figure of merit

相关短语

efficiency apartment 有小厨房和卫生设备的小套公寓房间 efficiency apartments efficiency engineer [经] 效率技师 efficiency engineers Pareto efficiency dynamic efficiency productive efficiency [经] 生产效率 static efficiency Kaldor-Hicks efficiency tax efficiency cost efficiency 成本效益

词源

From Latin efficientia, equivalent to efficient + -cy.

来源：wiktionary