1.
Structural Design and Mechanism Study on Water-saving Rotary Percussive Devices;
节水型回转冲击钻具结构设计与钻进机理研究
2.
Penetration Mechanism of DTH Percussion Compact Drilling and Experimental Research on Compact Bit;
潜孔锤冲击挤密钻进机理及挤密钻头的设计与实验研究
3.
Mechanisms and Application of Hydraulic Pulsed Cavitating Jet Assisted Drilling
水力脉冲空化射流钻进机理及现场应用
4.
Action Mechanism Research and Improvement of Slips of Horizontal Directional Drilling Rig
水平定向钻机卡瓦的作用机理研究与改进
5.
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。
6.
A Study on the Leaned Burr Formation in Drilling process
钻削加工中进给方向毛刺生成机理的研究
7.
engineering boring and drilling devices
工程钻探和掘进机械
8.
Study on Dynamic Characteristics and Failure Mechanism of Drill String in Air Drilling
气体钻井钻柱动力学特性及钻柱失效机理研究
9.
The Analysis of Principle for Drill Frame of MG100 Hydraulic Roof Bolter
MG100全液压锚杆钻机钻架工作原理分析
10.
The Theoretic Research and Computer Application of Technology of Trenchless Guiding Drilling Laying Pipeline;
非开挖导向钻进铺管技术的理论研究与计算机应用
11.
Research on Coring Mechanism of Reverse Circulation Continuous Coring Drilling of Hollow DTH;
贯通式潜孔锤反循环连续取心钻进取心机理研究
12.
Combined Application of Steel Casing by Vibrating Hammer and Rotary Drilling Rig
振动锤沉拔钢护筒与旋挖钻机钻进的组合应用
13.
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
14.
worm-type mechanical hand-feed drill
蜗杆式机械手动推进钻机
15.
To bore(a shaft) with a trepan.
钻用钻井机钻（矿井）
16.
Study on the Mechanism of Drilling Tools Corrosion in Drilling Fluids and Inhibitors for This System;
磺化钻井液中钻具腐蚀机理和缓蚀剂的研究
17.
Research on the Breakage Mechanism of Micro-drills and Drilling Forces Online Monitoring
微钻头折断机理及钻削力在线监测的研究
18.
A Study on the Theory and Technology of Drilling Fluids to Increase ROP.
提高机械钻速的钻井液理论与技术研究