electromagnetic radiation

名词 electromagnetic radiation:

1. radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
   同义词：electromagnetic wave, nonparticulate radiation

1. Electromagnetic radiation produced by natural phenomena such as lightning.
   大气电，自然电波由自然现象，如闪电等产生的电磁辐射等
2. 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
3. A specific range of wavelengths or frequencies of electromagnetic radiation.
   波段，波带电磁辐射的波长和频率的特定范围
4. Electromagnetic radiation used to raise atoms or molecules to a higher energy level.
   电磁辐射能用来将原子或分子提升到较高能级的电磁辐射