quality control of coal

英 [quality control of coal]
美 [quality control of coal]

中文释义

煤质管理

单词分析

单词结构：

quality control of coal

字母数：23

记忆提示

🎯 重点记忆：

  • 单词拼写：quality control of coal
  • 核心含义：煤质管理

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更新时间：2026-02-02 04:39:54