machine switching telephone system

英 [machine switching telephone system]
美 [machine switching telephone system]

中文释义

机械自动电话制

单词分析

单词结构：

machine switching telephone system

字母数：34

记忆提示

🎯 重点记忆：

  • 单词拼写：machine switching telephone system
  • 核心含义： 机械自动电话制

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更新时间：2026-03-21 12:46:02