| 释义 |
无线电波wúxiàn diànbō无线电技术中使用的电磁波,波长从1毫米到3,000米以上。可分为长波、中波、中短波、短波、微波等。{electromagnetic waves used in radio, the wavelengths of which varying from 1 millimetre to over 3,000 metres, including long wave, medium wave, medium-short wave, short wave, microwave, etc.} |