train air signal valve

英 [train air signal valve]
美 [train air signal valve]

中文释义

列车号态气阀

单词分析

单词结构：

train air signal valve

字母数：22

记忆提示

🎯 重点记忆：

  • 单词拼写：train air signal valve
  • 核心含义：列车号态气阀

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更新时间：2025-12-08 09:42:45