high-face room-and-pillar mining

英 [high-face room-and-pillar mining]
美 [high-face room-and-pillar mining]

中文释义

高工作面房柱式开采

单词分析

单词结构：

high-face room-and-pillar mining

字母数：32

记忆提示

🎯 重点记忆：

  • 单词拼写：high-face room-and-pillar mining
  • 核心含义：高工作面房柱式开采

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更新时间：2026-02-07 05:45:33