... full face 全断面的 full-face drilling 全断面钻进 full-face tunneling 隧道全面开挖,全断面...
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无岩心钻进
full face drilling 全面钻进
petroleum full face drilling 石油全面钻头
·2,447,543篇论文数据，部分数据来源于NoteExpress
YZX127 hydro hammer used for full face drilling is described with its structural characteristics, performance parameters and laboratory test results as well as the application prospects introduced.
介绍了用于全面钻进的YZX127型液动潜孔锤的结构特点、性能参数、室内岩样实钻试验效果，展望了其广阔的应用前景。
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