closed-circuit telegraph system

英 [closed-circuit telegraph system]
美 [closed-circuit telegraph system]

中文释义

闭路电报系统

单词分析

单词结构：

closed-circuit telegraph system

字母数：31

记忆提示

🎯 重点记忆：

  • 单词拼写：closed-circuit telegraph system
  • 核心含义：闭路电报系统

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更新时间：2026-01-31 18:37:53