coal mining above aquifer

[coal mining above aquifer]
[coal mining above aquifer]

中文释义

承压含水层上采煤

单词分析

单词结构:

coal mining above aquifer

字母数:25

记忆提示

🎯 重点记忆:

  • 单词拼写:coal mining above aquifer
  • 核心含义:承压含水层上采煤