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。
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。
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