英语词汇“downward light output ratio”的英文翻译、意思、用法、释义-英汉汉英词典-喷码机网

单词	downward light output ratio
释义	downward light output ratio (of a luminaire)下半球照明具效率電機工程downward light output ratio (of a luminaire)下半球照明具效率電力工程
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