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首页 > 英汉词典 > ortho-bituminous coal

ortho-bituminous coal

英 [ortho-bituminous coal]
美 [ortho-bituminous coal]

中文释义

中阶烟煤

单词分析

单词结构:

ortho-bituminous coal

字母数:21

记忆提示

🎯 重点记忆:

  • 单词拼写:ortho-bituminous coal
  • 核心含义:中阶烟煤

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更新时间:2026-01-08 11:49:45

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