ef‧fi‧cien‧cy W3 / ɪfɪʃ ə nsi / 名词

1 [不可数名词] the quality of doing something well and effectively, without wasting time, money, or energy 反义词 inefficient

efficiency of

the efficiency of the train service

considerable advancements in energy efficiency

2 efficiencies [复数形式] the amounts of money, supplies etc that are saved by finding a better or cheaper way of doing something :

operating efficiencies

COLLOCATIONS

动词

improve/increase efficiency The company is taking steps to improve efficiency and reduce costs. | Recent efforts by American business to increase efficiency seem to have failed.

promote efficiency (= develop or encourage efficient ways of doing something ) A competitive market helps to promote efficiency.

ADJECTIVES/NOUN + efficiency

greater/increased efficiency In a search for greater efficiency, the two departments have merged.

maximum efficiency (= the most that is possible ) The boat’s design helps it to move with maximum efficiency.

fuel efficiency (= using fuel in an efficient way ) Better fuel efficiency can be achieved by driving more slowly.

energy efficiency (= using energy in an efficient way ) Energy efficiency can play a huge role in reducing pollution.

high efficiency (= used about machines ) The diesel engine offers high efficiency and low fuel consumption.

operating/operational efficiency (= the efficiency with which a machine or system works ) The computer can process this information quickly, without any loss of operating efficiency.

efficiency + NOUN

efficiency gains (= increases in efficiency ) New technology introduced by the company has brought efficiency gains.

efficiency savings (= money saved by being more efficient ) Efficiency savings in the industry will inevitably lead to job losses.

efficiency measures (= changes introduced to make something more efficient ) The new efficiency measures are designed to improve the health service.

standards of efficiency Their work led to higher standards of efficiency across the industry.