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luminous energy英英字典_luminous energy剑桥英语解释_luminous energy柯林斯英文解释_伍贰汉英词典
伍贰汉英词典

luminous energy

L 开头单词

柯林斯词典

    luminous energy

  • 1. N energy emitted or propagated in the form of light; the product of a luminous flux and its duration, measured in lumen seconds 發光能量 ( symbol: )

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