coal preparation

英 [coal preparation]
美 [coal preparation]

中文释义

[建] 选煤

单词分析

单词结构：

coal preparation

字母数：16

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🎯 重点记忆：

  • 单词拼写：coal preparation
  • 核心含义：[建] 选煤

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更新时间：2026-04-10 19:40:35