double-direction running automatic block

英 [double-direction running automatic block]
美 [double-direction running automatic block]

中文释义

双向自动闭塞

单词分析

单词结构：

double-direction running automatic block

字母数：40

记忆提示

🎯 重点记忆：

  • 单词拼写：double-direction running automatic block
  • 核心含义：双向自动闭塞

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更新时间：2025-12-08 10:56:21