telegraph or telephone block system

英 [telegraph or telephone block system]
美 [telegraph or telephone block system]

中文释义

[电] 通信闭塞制

单词分析

单词结构：

telegraph or telephone block system

字母数：35

记忆提示

🎯 重点记忆：

  • 单词拼写：telegraph or telephone block system
  • 核心含义：[电] 通信闭塞制

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更新时间：2025-12-21 21:26:24