exchange trunk carrier system

英 [exchange trunk carrier system]
美 [exchange trunk carrier system]

中文释义

局间中继线载波系统

单词分析

单词结构：

exchange trunk carrier system

字母数：29

记忆提示

🎯 重点记忆：

  • 单词拼写：exchange trunk carrier system
  • 核心含义：局间中继线载波系统

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更新时间：2026-01-22 10:26:27