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首页 > 英汉词典 > protected coal seam

protected coal seam

英 [protected coal seam]
美 [protected coal seam]

中文释义

被保护煤层

单词分析

单词结构:

protected coal seam

字母数:19

记忆提示

🎯 重点记忆:

  • 单词拼写:protected coal seam
  • 核心含义:被保护煤层

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更新时间:2025-12-21 09:25:41

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