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Development and Application of Reverse Circulation DTH
Author(s): 
Pages: 31-34
Year: Issue:  4
Journal: Exploration Engineering(Rock & Soil Drilling and Tunneling)

Keyword:  空气钻进水井砂金勘探反循环气动潜孔锤;
Abstract: 针对目前正循环气动潜孔锤施工中存在的若干问题,开发研制了新型派生系列反循环气动潜孔锤,经过在水井、砂金勘探施工中的应用,取得了非常显著的效果,为我国采用此种工艺方法施工提供了一种新的产品,使得这项技术更加完善,更加成熟,应用领域更加广阔.
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