Taking the ventilation of Yinshan region of Yinshan Laed and Zinc Mine for example, the paper makes an approach to the deep ventilation and settles it up well.
本文以银山铅锌矿银山区为例，对其深部通风问题进行探讨，并使问题很好地得到解决。
The original emphasizesd on construction in mine shaft deep thick swelling claypan in Tang-kou, the damage of outward layer a well of wall and some efficient measures.
介绍了唐口副井井筒冻结段深厚膨胀黏土层施工、外层井壁变形破坏情况及采取的有效措施，取得了一些有用的经验。为类似地层施工提供借鉴。
应用推荐