closed shaft

英 [closed shaft]
美 [closed shaft]

中文释义

封闭竖井

单词分析

单词结构：

closed shaft

字母数：12

记忆提示

🎯 重点记忆：

  • 单词拼写：closed shaft
  • 核心含义：封闭竖井

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更新时间：2026-02-14 04:25:06