shortwave radio
short′wave ra′dio
n.
| 单词 | shortwave radio |
| 释义 | shortwave radioshort′wave ra′dion. shortwave radioshortwave radioRadio transmission in the 1.7-30 MHz frequency range worldwide. Like AM radio, shortwave signals reflect back from the ionosphere and follow the curvature of the earth. See amateur radio, AM radio and FM radio. |
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