名词中文翻译
中文翻译：光指数
同义词：
['lightness index', 'luminance index']
例句：
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1. The light index of the room is low, which means it's not bright enough.
房间的亮度指数低，说明不够明亮。
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2. The new lighting system has greatly improved the light index in the classroom.
新的照明系统极大地提高了教室的亮度指数。
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3. In order to reduce energy consumption, we need to optimize the light index of our buildings.
为了减少能源消耗，我们需要优化我们建筑的亮度指数。