1. 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.
2. 無線通訊以電磁波密碼進(jìn)行的可聽信號(hào)的聯(lián)絡(luò)
   Communication of audible signals encoded in electromagnetic waves.
3. 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(gè)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.
4. 調(diào)制器用以調(diào)制電磁波的裝置
   A device used to modulate an electromagnetic wave.

電的英語翻譯：

磁的英語翻譯：