high volatile bituminous coal a

[high volatile bituminous coal a]
[high volatile bituminous coal a]

中文释义

气煤

单词分析

单词结构:

high volatile bituminous coal a

字母数:31

记忆提示

🎯 重点记忆:

  • 单词拼写:high volatile bituminous coal a
  • 核心含义: 气煤