four-wire voice frequency telephone repeater

英 [four-wire voice frequency telephone repeater]
美 [four-wire voice frequency telephone repeater]

中文释义

四线制话频电话中继器

单词分析

单词结构：

four-wire voice frequency telephone repeater

字母数：44

记忆提示

🎯 重点记忆：

  • 单词拼写：four-wire voice frequency telephone repeater
  • 核心含义：四线制话频电话中继器

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更新时间：2026-04-13 12:10:36