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( Ex: 好 ou 你好 ou 花好月圆 )
线
hóng wài xiàn
红外线 hóng wài xiàn
在电磁波谱中,波长介于红光和微波间的电磁辐射。它不能引起视觉,但有显著的热效应,可以用温差电偶、光敏电阻或光电管等仪器来探测
More about 红外线 characters :
- - 线


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