splitting method of pillar recovery

[splitting method of pillar recovery]
[splitting method of pillar recovery]

中文释义

煤柱分隔回采法

单词分析

单词结构:

splitting method of pillar recovery

字母数:35

记忆提示

🎯 重点记忆:

  • 单词拼写:splitting method of pillar recovery
  • 核心含义:煤柱分隔回采法