manual block signal

英 [manual block signal]
美 [manual block signal]

中文释义

人工阻塞信号

单词分析

单词结构：

manual block signal

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：manual block signal
  • 核心含义：人工阻塞信号

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更新时间：2026-02-04 18:54:55