英 [ɪˈfɪʃ(ə)nsi] 美 [ɪˈfɪʃ(ə)nsi]
n. 效率，效能；（机器的）功率
[ 复数 efficiencies ][1]
柯林斯英汉双解大词典
efficiency /ɪˈfɪʃənsɪ/ CET4 TEM4
1.N-UNCOUNT Efficiency is the quality of being able to do a task successfully, without wasting time or energy. 效率[1]
high efficiency 高效率
production efficiency 生产效率
work efficiency 工作效率；劳动效率；加工效率
economic efficiency 经济效率
energy efficiency 能源效率；能量效率
improve efficiency 提高效率
removal efficiency 去除效率
thermal efficiency 热效率
conversion efficiency 换能效率
operating efficiency 营业效率，经营效率；工作效率
operational efficiency 经营效率；运作效率
transfer efficiency 转换效率；传输效率；合金过渡系数
increase efficiency 提高效率
current efficiency 电流效率
economical efficiency 经济效率，经济效果；经济有效
transmission efficiency 传输效率，通话效率
learning efficiency 学习效率