1.
The Better Chosen of the Field Arrangement of the Drill Hole Pulls Out Putting Drills and the Drill Hole Parameter of the Coal Bed Gas in PanJiang Mining Area;
盘江矿区煤层气钻孔抽放钻场布置及钻孔参数优选
2.
Experimental Study on Rock Breaking Parameters of Combined Swirling and Round Jet
直旋混合射流破岩钻孔参数试验研究
3.
Research on Parameters of Gas Drilling Bore in Steep Coal Seam Gob
急倾斜煤层采空区瓦斯抽采钻孔参数研究
4.
Numerical Simulation of Cutting Forces Generated by Drills with Indexable Inserts and Optimization for Drill Parameters;
可转位浅孔钻钻削力数值仿真及参数优化
5.
Study on the parameters of highwall auger mining in open pit mine
露天矿高边坡钻孔采矿法的参数研究
6.
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
7.
The deviational survey unit measures the parameters of the apex angle and the azimuthal angle of the bore hole;
测量单元用于测量钻孔的顶角与方位角等参数；
8.
Mechanism Research of Gas Drainage by Drilling Long Holes
井下预抽瓦斯定向长钻孔的合理性参数研究
9.
Geometric Parameters Optimization for Drills with Indexable Inserts Based on FEM
基于FEM的可转位浅孔钻几何参数的优化
10.
The Optimized Study of Gas Taking out Parameters of High Position Boring of Taoyuan
桃园矿高位钻孔瓦斯抽放参数优化研究
11.
Effect of Cutting Parameters on Deep Hole Drilling's Quality of High Pressure Heater Tube Plates
切削参数对高压加热器管板深孔钻孔质量的影响
12.
Reliability Analysis of Bored Pile Foundation Based on the Random Field of Geotechnical Parameters;
基于岩土参数随机场的钻孔灌注桩基础的可靠性分析
13.
Application of DOE on Parameter Optimization in PCB Micro-drilling Process
实验设计(DOE)技术在PCB微孔钻削工艺参数优化中的应用
14.
The Study on the Key Gas Drainage Technique by Long & large Diameter Roof Boreholes in Fully Mechanized Face
综采面顶板走向大直径长钻孔瓦斯抽采技术参数的研究
15.
Most drilling in metal is done with a twist drill.
大多数金属钻孔用的是麻花钻头。
16.
drilling practice
钻井实践；钻井习用方法；钻井作业；钻井参数
17.
Test of digital borehole camera and borehole computed tomography imaging
数字钻孔摄像与钻孔CT层析成像测试试验
18.
Numerical Simulation of Drilling Mechanism under Non-steady Cutting Conditions for Dills with Indexable Inserts;
可转位浅孔钻非稳态钻削的数值仿真研究