sub-bituminous coal

英 [sub-bituminous coal]
美 [sub-bituminous coal]

中文释义

[化] 次烟煤

单词分析

单词结构：

sub-bituminous coal

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：sub-bituminous coal
  • 核心含义：[化] 次烟煤

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更新时间：2026-01-30 23:45:14