medium-thickness coal seam

英 [medium-thickness coal seam]
美 [medium-thickness coal seam]

中文释义

中厚煤层

单词分析

单词结构：

medium-thickness coal seam

字母数：26

记忆提示

🎯 重点记忆：

  • 单词拼写：medium-thickness coal seam
  • 核心含义：中厚煤层

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更新时间：2026-01-20 05:50:22