| 术语 | electromagnetic radiation |
| 释义 | electromagnetic radiation 电磁辐射 In communications and optics, a radio or light energy wave as sociated with electric and magnetic fields. Electromagnetic radiation requires no supporting medium and is propagated through space at a velocity of approximately 3×(10 to the power 8) metres per second. The nature of electromagnetic radiations depends upon their frequency and includes light waves and microwaves. In radiocommunica- tions, the carrier signal is an electromagnetic wave which is transmitted and received by an antenna. 在通信技术和光学中,与电场和磁场有关的无线电波或光波。电磁辐射不需要媒体而能以 大约3×１０８米／秒的速度通过空间传播。电磁辐射的性质取决于它的频率。光波和微 波实质上也是电磁辐射。在无线电通信技术中,载波信号是电磁波,它通过天线发送和接收。 |
| 随便看 |
|
计算机英汉双解词典包含21137条计算机术语英汉翻译词条，基本涵盖了全部常用计算机术语的翻译及用法，是计算机学习及翻译工作的有利工具。