1.
Analysis and Optimization on Invalid Casing in Casing Drilling in Luanchuan Molybdenum Mine
栾川钼矿跟管钻进套管失效分析及优化设计
2.
Research on the Technology Issue of Down-the-hole Hammer Drilling with Casing for Complex Stratum
复杂地层潜孔锤跟管钻进工艺问题研究
3.
Determining the Maximum Depth Method for Complex Formation Pneumatic DTH Drilling with the Casing
复杂地层气动潜孔锤跟管钻进最大深度的确定方法
4.
Application of multi-casting drilling to engineering investigation of Gongzha landslides for Suwalong Hydropower Station
多级跟管钻进工艺在苏哇龙水电站贡扎滑坡体工程勘察中的应用
5.
wash-and-drive method
边冲出钻屑边打入套管钻进法
6.
Design and Improvement of Back Reamer in Directional Drilling Non-excavation Pipe Laying Construction
导向钻进非开挖铺管施工扩回钻头的设计改进
7.
"Follow me, then," said the abbé, as he re-entered the subterranean passage, in which he soon disappeared, followed by Dantès.
“那就跟我来吧。” 神甫说着就重新钻进了地道里，一会儿就不见了, 唐太斯跟着他钻了进去。
8.
They climbed down the opening one after the other, the eldest sister leading the way.
由大姐领头，她们一个跟着一个钻进洞去。
9.
Design and Analysis on Finite Element of New Type DTH Hammer Drilling with Eccentric Simultaneous Casing
新型偏心跟管钻具的设计与有限元分析
10.
Promoting the Enhancement of Construction Quality by Perfecting the Supervision Management of Drilling Well;
完善钻井监督管理 促进施工质量提高
11.
Classification of Build-up Intensity in Trenchless Technology for Pipe Laying
导向钻进非开挖铺管的导向强度研究
12.
deepwater drilling
深水钻进、深海钻进
13.
Theoretical Analysis and Experimental Research of Flow Field by DTH Hammer Drilling with Simultaneous Casing Tool of JSL-30 Drill Rig;
基于JSL-30型砾石钻机潜孔锤同心跟管钻具的流场理论分析及试验研究
14.
easing the bit in
钻头轻压慢转钻进地层
15.
Management of Quality and Constructing in Infixing and Forming Hole Vibrating and Striking Gravelly Stake;
钻进成孔振冲碎石桩的质量与施工管理
16.
A Study on Pipeline Installation Technology of Horizonal Directional Drilling in Rock
岩层水平定向钻进铺管施工工艺的试验研究
17.
Bore Information Management and the Method Improvement of Auto-Generating Histogram
钻孔信息管理和柱状图成图方法的改进研究
18.
Research on Drilling and Driving Hydraulic Drive System of Forpoling Rig
管棚钻机掘进与行驶液压驱动系统研究