manual signalling

英 [manual signalling]
美 [manual signalling]

中文释义

人工信号法;人工信号设备

单词分析

单词结构：

manual signalling

字母数：17

记忆提示

🎯 重点记忆：

  • 单词拼写：manual signalling
  • 核心含义：人工信号法;人工信号设备

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更新时间：2026-01-29 20:40:02