voice frequency carrier telegraph 影片载波电报 ; 音频载波电报

voice-frequency carrier telegraphy 音频载波电报术

voice-frequency carrier telegraph terminal 音频载波电报终端机

voice-frequency carrier telegraph equipment 音频载波电报设备

VFC Voice Frequency Carrier 音频载波

VFCT Voice Frequency Carrier Terminal 音频载波终端

VFCT Voice Frequency Carrier Telegraph 影片载波电报

voice-frequency carrier teletype [计] [通信] 音频载波电传打字机

voice-frequency carrier channel [通信] 音频载波信道