名词
中文翻译：发光体
同义词：
['luminous', 'luminescent']
例句：
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1.The new LED light bulb is much more efficient than the old one.
这款新型LED灯泡比旧的更高效。
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2. The scientist used a luminous material to create a glowing effect in his experiment.
科学家使用了一种发光材料来在他的实验中创造出一种发光效果。
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3. The moon is a luminous object that can be seen from space.
月亮是一个在太空中可见的发光物体。