DC signalling

英 [DC signalling]
美 [DC signalling]

中文释义

[网络] 直流振铃

单词分析

单词结构：

DC signalling

字母数：13

记忆提示

🎯 重点记忆：

  • 单词拼写：DC signalling
  • 核心含义：[网络] 直流振铃

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更新时间：2026-01-30 01:40:18