效率xiàolǜ 1.机械、电器等工作时,有用功在总功中所占的百分比。{(of machinery, electrical appliances, etc.) ratio of useful work to the total work performed} 2.单位时间内完成的工作量{efficiency; work accomplished in unit time}: 工作～{working efficiency}|用机耕比用畜耕～高得多。{The efficiency of mechanized farming is much higher than that of farming using animal labour.}