1.
guide twist drill
有导径的深孔麻花钻
2.
long hole raising
深孔爆破法天井掘进
3.
sublevel blast-hole method
深孔分段崩落采矿法
4.
Research on Mechanics of Charging Structure of Bottom Gas-Space in Deep-hole Blasting Engineering;
中深孔爆破孔底空腔装药机理的研究
5.
On the Application of Outer-hole Blast in Medium Length Hole
孔外延期爆破在中深孔爆破中的应用
6.
Design and Realization of the Monitoring System in Deep-Sea Drilling Machine
深海中深孔钻机监控系统设计与实现
7.
Application of the Blasting Technique about Medium Depth Bore and Post Hole Joint Control
中深孔与浅孔联合控制爆破技术的应用
8.
Research on Centerline Straightness Error of Deep-hole Drilling by Robust Design Theory;
基于稳健设计理论的深孔加工孔直线度研究
9.
Research on Mechanics and Application of Orifice Space Loading in Middle and Deep-hole Rock Blasting
中深孔孔口空腔装药技术的研究及其运用
10.
Hydraulic Model Tests on Bottom and Middle Outlets for Three Gorges Project
长江三峡水利枢纽底孔和深孔水力学研究
11.
The Application of Deep Pore Loosening Control Blasting in Bridge Bored Pile Construction
深孔松动控制爆破在桥梁钻孔桩施工中的应用
12.
CONSTRUCTION SCHEDULE ADVANCEMENT OF DRILLING PILE BY DEEP HOLE WATER PRESSURE BLASTING
采取深孔水压爆破提高钻孔桩施工进度
13.
Analysis & research of design of middle-deep blasting holes at underground levels more than 120m deep
井下深部开拓120m以下中深孔设计的分析与研究
14.
Numerical simulation of cup drawing based on drawing-hole forming technology
基于拉深孔成形技术的杯形件拉深数值模拟
15.
high efficiency drilling system for small and deep hole
高效小直径深孔钻削系统
16.
Extrusion Deep-hole in Power Steering Case
汽车动力转向器壳体深孔的光整挤压
17.
LARGE-DIAMETER LONGHOLE STOPING METHOD IN SPAIN
西班牙大直径深孔采矿方法考察概况
18.
Drilling 50 yards deep,
钻孔至50码深处，