bottom pillar

英 [bottom pillar]
美 [bottom pillar]

中文释义

【采矿】井底保安矿柱

单词分析

单词结构：

bottom pillar

字母数：13

记忆提示

🎯 重点记忆：

  • 单词拼写：bottom pillar
  • 核心含义：【采矿】井底保安矿柱

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更新时间：2025-12-11 19:28:42