mining pillar and stall

英 [mining pillar and stall]
美 [mining pillar and stall]

中文释义

房柱法;煤柱法

单词分析

单词结构：

mining pillar and stall

字母数：23

记忆提示

🎯 重点记忆：

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

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更新时间：2026-01-31 20:31:17