VFT Voice Frequency carrier telegraph Terminal
V_微缩略语_dict ... VFSS VoiceFrequencySignalingSystem 音频信令系统 VFT VoiceFrequencycarriertelegraphTerminal 音频载波电报终端 VFT VoiceFrequencyTelegraph 音频电报 ...
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短语
音频载波电报终端机
voice-frequency carrier telegraph terminal