the state or quality of being efficient
功效;效力;效能
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greater energy efficiency .更大的能效。
[count noun]an action designed to achieve this
效力的提高
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the reforms will lead to efficiencies and savings .改革将会提高效力和促进节约。
[count noun]
〈技〉 效率。
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efficiencyn.功效;效力;效能;效力的提高;效率
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deficiencyn.缺乏;不足;缺陷;缺点;赤字
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efficientlyadv.有效地;效率高地
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efficientadj.效率高的;有能力的;能胜任的;防止造成…的浪费的
"late 16th cent. (in the sense ‘the fact of being an efficient cause’): from Latin