infrared radiation

名词 infrared radiation:

1. electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
   同义词：infrared, infrared light, infrared emission

1. Any of several devices that convert incident electromagnetic radiation of mixed frequencies to one or more discrete frequencies of highly amplified and coherent ultraviolet, visible, or infrared radiation.
   激光器使偶然的混杂频率的电磁辐射，变为一个或更多的高度强化和连续的紫外线、可见光或红外线辐射的分离频率仪器中的一种