基本解释n.基于帧中继网络的语音传输同根派生 VoFR相关词英汉例句VOFR? Voice Over Frame Relay? 帧中继语音传送?VoFR Voice over Frame Relay 帧中继语音传送VoFR dial peer 帧中继话音通信拨号端VoFR更多例句