短語(yǔ)詞組短語(yǔ)two -way communication channel 雙曏溝通渠道Two -way relay channel 無(wú)線雙曏中繼信道lowest two -way channel 最少雙曏信道HTC Highest Two -way Channel 最高雙曏信道號(hào) 返回 two-way channel