environmental protection in coal mining

英 [environmental protection in coal mining]
美 [environmental protection in coal mining]

中文释义

煤炭环境保护

单词分析

单词结构：

environmental protection in coal mining

字母数：39

记忆提示

🎯 重点记忆：

  • 单词拼写：environmental protection in coal mining
  • 核心含义：煤炭环境保护

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更新时间：2026-02-07 13:34:29