片语
radio relay horizon distance无线电接力视距
New Horizon Radio Station广播站
radio communication beyond the horizon超越地平线无线电通讯
radio horizon range无线电水平量程
radio horizon distance无线电地平线距离
tra horizon radio-relay system超地平无线接力系统
RHR Radio Horizon Range无线电水平量程
standard radio horizon[电子]