tone-coded squelch system 音频编码静噪通信系统
connected tone-controlled squelch system 连续单音控制静噪制
Continuous Tone Coded Squelch System 亚音频
Continuous Tone Controlled Squelch System 连续语音控制静噪系统
coded squelch system 音频编码静噪通信系统
controlled squelch system 连续单音控制静噪制
tone-coded d squelch system 音频编码静噪通信系统
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