block signal rule

英 [block signal rule]
美 [block signal rule]

中文释义

闭塞信号规则

单词分析

单词结构：

block signal rule

字母数：17

记忆提示

🎯 重点记忆：

  • 单词拼写：block signal rule
  • 核心含义：闭塞信号规则

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更新时间：2026-02-03 00:40:30