1.
Open Hole Drilling with Cemented Carbide in Songyuan Oil Shale Formation
松原油页岩地层硬质合金裸孔钻进技术
2.
FEM for a type drilling-perforating casing with screw holding in open hole completion
裸眼完井螺旋钻孔-射孔套管的有限元分析
3.
Design and Construction of Marine Boring Platforms for Foundations Resting in Uncovered Rock in Deep Water
海上深水裸岩基础钻孔平台设计与施工
4.
Building of Construction Platform for Steel Casing of Bored Piles in Deep Water and Uncovered Rock
深水裸岩河床上钻孔桩护筒施工平台的搭设
5.
A whiff of cigarette smoke struck his nostrils.
一缕香烟钻进他的鼻孔。
6.
The Optimal Design About the Trajectory of Non dig Guided Boring
非开挖导向钻进钻孔轨迹的优化设计
7.
Study on drill bit for large diameter core drilling of deep hole in hard rock
硬岩深孔大口径取芯钻进的钻头研究
8.
Application of Bit Water Way in HDD
水平定向钻进扩孔钻头水口应用分析
9.
A Brief Explanation of Air Actuated DTH Hammer Drilling Efficiency
空气潜孔锤钻进是提高钻进效率的有效途径
10.
Drilling is performed with a rotating tool called a drill.
钻孔是用一个称为“钻头”的旋转刀具进行的。
11.
DISCUSSION OF TECHNOLOGY FOR DISPLAYING THE BORE STRATA HISTOGRAM IN-PHASE WITH DRILL
钻进时同步显示钻孔地层柱状图技术探讨
12.
Research on Bit for Efficient Drilling of Gas Drainage Borehole in Nantong Mining Area;
南桐矿区瓦斯抽放孔快速钻进钻头的研究
13.
Selection of Core Drilling Method for WFSD-2 of Wenchuan Earthquake Scientific Drilling Project
汶川地震科学钻探二号孔取心钻进方法的选择
14.
Vibration Signal Applied to Analyze Reaming Performances of Raise Boring Machine
采用振动信号分析反井钻机扩孔钻进工况
15.
Drilling Technology for Water Inrush Borehole in Pulang Copper Mining Area of Shangrila
香格里拉县普朗铜矿区涌水钻孔钻进工艺
16.
This machine can be used drilling,core drilling, reaming,boring,tapping, spot-facing and chamfering etc.
可以进行钻孔、扩孔、铰孔、镗孔、攻丝、锪平面，倒角等工作。
17.
The paper sequentially analyzed the starting-crack mechanism of hydraulic fracture bore which lies in coal delamination or lies between two coal delaminations or through many coal delaminations.
进而论文分析阐述了煤分层中钻孔、分层层面钻孔、以及穿层钻孔水力压裂的起裂机理。
18.
The Parameters Optimization of the Reverse Circulation DTH Hammer and Studies on Its Drilling Technique;
全孔反循环潜孔锤参数优化及其钻进工艺研究