Efficiency效率
1 the quality or degree of being efficient
2 a: efficient operation b (1): effective operation as measured by a
comparison of production with cost (as in energy, time, and money) (2): the
ratio of the useful energy delivered by a dynamic system to the energy
supplied to it
效率
1. 所付出之能力與所獲得之功效的比率。
2. 物理上指儀器所輸出的有效能量與輸入儀器的總能量的比值。
Effectiveness效能
1 a: producing a decided, decisive, or desired effect <an effective policy> b:
impressive, striking <a gold lame fabric studded with effective…precious
stones — Stanley Marcus>
2 ready for service or action <effective manpower>
3 actual <the need to increase effective demand for goods>
4 being in effect : operative <the tax becomes effective next year>
5 of a rate of interest : equal to the rate of simple interest that yields
the same amount when the interest is paid once at the end of the interest
period as a quoted rate of interest does when calculated at compound interest
over the same period — compare nominal 4
效能
1.有效果、成效。漢書˙卷九˙元帝紀：「婁敕公卿，日望有效。」宋˙蘇軾˙
笏記二首之一：「文章小技，縱有效於涓埃；草木微生，終難酬於雨露。」
2.事物已顯現的功效。
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