frequency modulated voice frequency telegraph
... FMV 富士通微机系列〖品牌〗 FMVFT Frequency Modulated Voice Frequency Telegraph 调频音频电报 FN Feedback Network 反馈网络 ...
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modulated voice frequency telegraph
Modulated middle frequency electrotherapy 调制中频电疗法 modulated voice frequency telegraph 调频音频电报 linearly modulated stepped frequency 线性调频步进信号 ..
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