名词
中文翻译：光通量
同义词：
['luminous', 'illumination', 'luminance']
例句：
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1. The light from the street lamp illuminates the area.
街灯发出的光线照亮了那个区域。
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2. The scientist used a special device to measure the luminance of the stars.
科学家使用一种特殊的设备来测量星星的亮度。
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3. The movie was so dark that it felt like there was no light at all.
电影太暗了，感觉就像完全没有光线一样。