1.
Diamond drilling replaced percussion drilling.
金钻探取代了冲击钻探。
2.
Discussion on application of borehole pressure reliefcontrol rockburst hazard
应用卸压钻孔防治冲击地压灾害的探讨
3.
A Technical Investigation on Drilling in Australia and the Technical Service of Wire-line Coring Percussive-rotary Drilling
澳大利亚钻探技术考察与绳索取心冲击回转钻进技术服务
4.
hand churn drill
手动钢绳冲击式钻机
5.
The Strength and Modal Analysis of GCF-1500 Impact Drilling Machine Tower;
GCF-1500冲击钻机钻塔强度与模态分析
6.
A Study of the Technique of Cable Drilling in Modern Time;
浅述近代冲击(顿钻)钻井工艺技术
7.
Analysis and Treatment of an Accident of Blocking Bore of Excavated Hole Driven Cast-in-Place Pile by Percussion Drill
一起冲击钻成孔灌注桩卡钻事故的分析与处理
8.
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
9.
Downhole drill hammers and drills
GB/T13344-1992潜孔冲击器和钻头
10.
The Modal Identification of the Hybrid System of GCD-1500 Percussive Drilling
GCD-1500钻机冲击机构刚柔体系模态识别
11.
Application of CJF Series Strike Backcycling Engineering Driller
CJF系列冲击反循环工程钻机的应用
12.
Key Construction Technology and Problem Treatment on Impact Bored Pile
冲击钻孔灌注桩施工要点及问题处理
13.
Experiment and Analysis Study on Percussion Device of CHF-20 Percussion and Rotary Reverse Circulation Drilling Rig;
CHF-20型冲击-回转反循环工程钻机冲击机构试验及分析研究
14.
Production of electrical tools, such as electric drills impact, angle angle grinder, saw, electric drill and curves.
生产各类电动工具，如冲击电钻，角向磨光机、电钻和曲线锯等。
15.
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
16.
Application of Percussion Drill and Rotary Drill in the Construction of Dock Rock-socketed Oblique Piles
冲击钻机与回转钻机在码头嵌岩斜桩施工中的应用
17.
Brief Study on the Rock Fragmentation Test Bed of Air Rotary Percussion Drilling
空气冲旋钻井破岩试验台架研制初探
18.
The Development of CHF-20 Percussive-Rotary Reverse-circulation Drill;
CHF-20型冲击—回转反循环工程钻机的研制