英语词汇“luminous efficiency”的中英文读音、翻译、固定搭配用法、短语词组及例句-英汉汉英双解词典-四方网

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单词	luminous efficiency
释义	luminous efficiencyn.（名词） The ratio of the total luminous flux to the total radiant flux of an emitting source.发光系数：任何光源所辐射的总光通量与该光源总辐射通量之比
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