developed coal reserves

英 [developed coal reserves]
美 [developed coal reserves]

中文释义

[矿业] 开拓煤量

单词分析

单词结构：

developed coal reserves

字母数：23

记忆提示

🎯 重点记忆：

  • 单词拼写：developed coal reserves
  • 核心含义：[矿业] 开拓煤量

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更新时间：2026-03-23 02:03:25