mining room and pillar

英 [mining room and pillar]
美 [mining room and pillar]

中文释义

房柱法;煤柱法

单词分析

单词结构：

mining room and pillar

字母数：22

记忆提示

🎯 重点记忆：

  • 单词拼写：mining room and pillar
  • 核心含义：房柱法;煤柱法

最近查询：

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更新时间：2026-02-02 23:07:01