economic coal reserves

英 [economic coal reserves]
美 [economic coal reserves]

中文释义

煤经济储量

单词分析

单词结构：

economic coal reserves

字母数：22

记忆提示

🎯 重点记忆：

  • 单词拼写：economic coal reserves
  • 核心含义：煤经济储量

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更新时间：2026-02-27 06:53:56