in band voice frequency signalling device

英 [in band voice frequency signalling device]
美 [in band voice frequency signalling device]

中文释义

带内音频振铃装置

单词分析

单词结构：

in band voice frequency signalling device

字母数：41

记忆提示

🎯 重点记忆：

  • 单词拼写：in band voice frequency signalling device
  • 核心含义：带内音频振铃装置

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更新时间：2026-04-11 09:43:24