1. 電磁輻射能用來將原子或分子提升到較高能級的電磁輻射
   Electromagnetic radiation used to raise atoms or molecules to a higher energy level.
2. 一種把下述光譜范圍內(nèi)的電磁輻射轉(zhuǎn)換成電流的裝置：紅外線、可見光和／或紫外線。
   A device for converting electromagnetic radiation in the infra-red, visible and/or ultra-violet regions of the spectrum into an electric current.
3. 大氣電，自然電波由自然現(xiàn)象，如閃電等產(chǎn)生的電磁輻射等
   Electromagnetic radiation produced by natural phenomena such as lightning.
4. 激光器使偶然的混雜頻率的電磁輻射，變?yōu)?a href="/hycd/y/y326650.htm" target="_blank">一個或更多的高度強(qiáng)化和連續(xù)的紫外線、可見光或紅外線輻射的分離頻率儀器中的一種
   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.

電磁的英語翻譯：

輻射的英語翻譯：