Ground waves are radio waves that propagate along the ground, and their attenuation factor depends on the radio wave frequency, the ground conductivity, and the propagation distance.
地波是沿地面传播的无线电波，其衰减因子取决于电波频率、地面导电率和传播距离。
| 正面 | LK1067 地波是沿地面传播的无线电波，其衰减因子取决于： |
|---|---|
| 背面 | 电波频率、地面导电率和传播距离 |
Tags: 电磁信号
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