As an example, the sensitive factors of Jiaozuo Zhong-macun coal mine were filtered.The result indicated that close Lizhuang f...

 
  • 结果表明,封闭性李庄断层、煤层分岔、砂岩顶板是该矿瓦斯突出的敏感地质指标。
今日热词
目录 附录 查词历史