heading and bench tunneling method

[heading and bench tunneling method]
[heading and bench tunneling method]

中文释义

导洞与层阶法

单词分析

单词结构:

heading and bench tunneling method

字母数:34

记忆提示

🎯 重点记忆:

  • 单词拼写:heading and bench tunneling method
  • 核心含义:导洞与层阶法