您要查找的是不是：
- carrier telegraph receiver 载波电报接收机
- VFT? Voice Frequency carrier telegraph Terminal? 音频载波电报终端?
- voice carrier telegraph testing equipment 音频载波电报测试仪
- VFT Voice Frequency carrier telegraph Terminal 音频载波电报终端
- It seems that the telegraph receiver is broken and can't receive telegraphs. 好像收报机坏了，无法收报！
- frequency modulation carrier telegraph 调频式载波电报
- High Frequency Carrier Telegraph Channel 高频载波电报信道
- emergency engine telegraph receiver 备用发动机电钟接收机
- voice frequency carrier telegraph multip 音频载波电报多路复用
- Chinese character telegraph receiver 中文收报机
- phase modulation carrier telegraph 调相式载波电报
- voice-frequency carrier telegraph 话频载波电报
- AM voice frequency carrier telegraph system 调幅音频载波电报系统
- voice frequency carrier telegraph terminal 音频载波电报终端
- voice frequency carrier telegraph 音频载波电报
- Variable Frequency Carrier Telegraph 变频载波电报
- audio frequency carrier telegraph measuring set 声频载波电报测试仪
- voice-frequency carrier telegraph equipment 音频载波电报设备
- voice-frequency carrier telegraph terminal 音频载波电报终端机
- amplitude-modulation carrier telegraph 调幅制载波电报
