The sun sometimes spoils the propagation of radio waves.
太阳有时会干扰无线电电波的传播。
The sun sometimes spoils the propagation of radio waves.
太阳有时会影响无线电波的传播。
The numerical result shows that the propagation of UHF radio waves favors high frequency.
数值分析的结果表明，UHF无线电波的较高频段能够在长壁工作面上传播。
In this paper the propagation attenuations of the radio waves in two different cases are discussed.
本文讨论了两种通讯方式的电波传输损耗。
In this paper the propagation attenuations of the radio waves in two different cases are discussed.
本文讨论了两种通讯方式的电波传输损耗。
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