radio horizon [通信] 无线电地平线 ; [电子] 电波地平线 ; 电波水平线
radio horizon range 无线电水平量程 ; 无线电地平线距离
standard radio horizon [电子] 标准无线电地平线 ; 标准无线电一增线
RHR Radio Horizon Range 无线电水平量程
radio horizon distance 无线电地平线距离
radio relay horizon distance 无线电接力视距
radio communication beyond the horizon 超越地平线无线电通讯 ; 视距外无线电通信
tra horizon radio-relay system 超地平无线接力系统
Evaporation ducts, or tropospheric ducts in general, can guide radio waves to distances far beyond the horizon with less attenuation, and then severely impair some certain radio wave system.
以蒸发波导为代表的对流层大气波导传播，可使电波在较小的衰减下沿波导传播得很远，从而严重影响合适的无线电系统。
"When I left I said it was only because I could see what was on the horizon," he told Radio Five's Sportsweek programme.
“当我离开的时候，我说我离开的原因是因为我已经看到了前方将会发生什么。”他告诉电台的体育节目。
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