1.
Construction Technology of Directional Branch Hole in Complex Easily Inclined Stratigraphic
若尔盖铀矿区复杂易斜地层定向分支钻孔施工技术
2.
Application of Bit Water Way in HDD
水平定向钻进扩孔钻头水口应用分析
3.
Study on axial vibration drilling to improve positioning accuracy
轴向振动钻削提高钻孔定位精度研究
4.
Application of Wireless-while-drilling Technology on Large Diameter Directional Hole
无线随钻技术在大口径定向工程钻孔中的应用
5.
The construction craft research of directional note thick liquid water shutoff drill hole in the depletion region
过煤矿采空区定向钻孔施工工艺研究
6.
Multilateral Opening Directional Hanging System Research
分支水平井预开孔定向悬挂系统的研究
7.
Stability and Bifurcation of the Drilling Shaft System in Processing Deep Hole Based on Boring and Trepanning Association
BTA深孔加工钻杆系统的稳定性及分岔
8.
Analyses on Stability of Bored Piles and Research on It by Base Post-Grouting;
钻孔灌注桩孔壁稳定性分析及后压浆应用研究
9.
Stability Analysis and Experimental Study of Hole Wall in Soil Horizontal Drilling;
土体中水平钻孔孔壁稳定性分析及试验研究
10.
If using this method, be sure to punch the holes from the opposite side and snip off the punched pieces of lead to avoid having them come loose inside the frame.
如果使用这个方法,一定要确定钻孔时要从外拍框向内拍框打孔，谨防避震条钻下的部分进入拍体。
11.
Application of Directional Drilling Technology in the Hole WFSD-1 of Wenchuan Earthquake Fault Scientific Drilling Project
汶川地震断裂带科学钻探一号孔(WFSD-1)定向钻进技术的应用
12.
Of course, one should be scrupulous when drilling through the surface of a mural.
当然，透过画面向岩石钻孔一定要慎之又慎。
13.
Study of Non-Dig Oscillate-Drilling DTH Orientation Device Applied on Hard Rock Stratum;
硬岩非开挖钻进摆动式潜孔锤定向机构的研究
14.
The Researching of Slurry s Effect in the HDD (Horizontal Directory Drilling);
非开挖水平定向钻孔中的泥浆作用机理研究
15.
The practice and application of kilometer-orientated large diameter and long-distance drilling
千米定向大直径长距离钻孔的实践与应用
16.
Mechanism Research of Gas Drainage by Drilling Long Holes
井下预抽瓦斯定向长钻孔的合理性参数研究
17.
Practice of directional hole boring for laying electric power supply lines
非开挖定向钻孔敷设电力电缆的施工实践
18.
The Reasonable Distribution and Design of Guidance Blocks for Deep-hole Drills by Internal Chip Removal
内排屑深孔钻导向块的合理分布及设计