chamber and pillar system

英 [chamber and pillar system]
美 [chamber and pillar system]

中文释义

房柱开采法

单词分析

单词结构：

chamber and pillar system

字母数：25

记忆提示

🎯 重点记忆：

  • 单词拼写：chamber and pillar system
  • 核心含义： 房柱开采法

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更新时间：2025-12-10 02:14:43