call set-up signal

英 [call set-up signal]
美 [call set-up signal]

中文释义

[通信] 呼叫建立信号

单词分析

单词结构：

call set-up signal

字母数：18

记忆提示

🎯 重点记忆：

  • 单词拼写：call set-up signal
  • 核心含义：[通信] 呼叫建立信号

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更新时间：2025-12-09 07:23:59