短語詞組短語signal isolation transmission 信號隔離傳輸signal waveform transmission 波形數(shù)據(jù)通信digital signal carrier transmission 數(shù)字信號載波傳輸signal cascade transmission 信號級聯(lián)傳遞digital signal baseband transmission 數(shù)字信號基帶傳輸signal remote transmission 信號遠(yuǎn)程傳輸railway signal information transmission 鐵路信號信息傳輸signal transmission without attenuation 無衰減信號傳播image signal transmission 圖像信號傳輸 返回 signal transmission