top slicing combined with ore caving

[top slicing combined with ore caving]
[top slicing combined with ore caving]

中文释义

下向水平分层崩落采矿法

单词分析

单词结构:

top slicing combined with ore caving

字母数:36

记忆提示

🎯 重点记忆:

  • 单词拼写:top slicing combined with ore caving
  • 核心含义:下向水平分层崩落采矿法