1.
Diamond drilling replaced percussion drilling.
金钻探取代了冲击钻探。
2.
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
3.
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
4.
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
5.
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
6.
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
7.
Construction technique of shock drilling pile of Wulongsugou super bridge of Zhun-Shuo railway
准朔铁路乌龙素沟特大桥冲击钻孔桩施工技术
8.
hand churn drill
手动钢绳冲击式钻机
9.
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
10.
Downhole drill hammers and drills
GB/T13344-1992潜孔冲击器和钻头
11.
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
12.
Application of CJF Series Strike Backcycling Engineering Driller
CJF系列冲击反循环工程钻机的应用
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.
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
16.
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
17.
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
18.
The Research of Portable and Quick Vibration Impact Sampling Equipment and Drilling Technology;
轻便快速振动冲击取样机具与钻进工艺的研究