infrared emanation

• 红外辐射

infrared emanation的用法和样例：

例句

1. At this stage the star radiates only in the infrared.
   恒星在这一阶段只有红外辐射。
2. Infrared radiation has wavelengths longer than those of visible light.
   红外辐射的波长比可见光的波长长。