短語(yǔ)詞組短語(yǔ)radio broadcast communication 無(wú)線電廣播通訊train radio dispatching communication 無(wú)線列調(diào)radio scattering communication 無(wú)線電散射通信radio trucking communication 無(wú)線集群通信smart radio frequency communication 智能射頻通信radio relay communication system 無(wú)線接力系統(tǒng)radio -communication equipment 無(wú)線電通訊設(shè)備 返回 radio communication