semibituminous coal

英 [semibituminous coal]
美 [semibituminous coal]

中文释义

半褐煤;半沥青煤;半烟煤

单词分析

单词结构：

semibituminous coal

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：semibituminous coal
  • 核心含义：半褐煤;半沥青煤;半烟煤

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更新时间：2025-12-22 10:08:54