run of mine coal seam

英 [run of mine coal seam]
美 [run of mine coal seam]

中文释义

[矿业] 原煤层

单词分析

单词结构：

run of mine coal seam

字母数：21

记忆提示

🎯 重点记忆：

  • 单词拼写：run of mine coal seam
  • 核心含义：[矿业] 原煤层

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更新时间：2026-04-14 14:06:53