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upper quadrant semaphore signal

英 [upper quadrant semaphore signal]
美 [upper quadrant semaphore signal]

中文释义

向上臂木号志机

单词分析

单词结构:

upper quadrant semaphore signal

字母数:31

记忆提示

🎯 重点记忆:

  • 单词拼写:upper quadrant semaphore signal
  • 核心含义:向上臂木号志机

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更新时间:2026-02-02 10:50:06

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