room-and-pillar stoping

英 [room-and-pillar stoping]
美 [room-and-pillar stoping]

中文释义

房柱采矿法

单词分析

单词结构：

room-and-pillar stoping

字母数：23

记忆提示

🎯 重点记忆：

  • 单词拼写：room-and-pillar stoping
  • 核心含义：房柱采矿法

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更新时间：2026-04-02 03:26:46