1.
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。
2.
Research on Maximize Technology of Extraction Mining with Drilling Through Coal Seam in Protective Coal Seam
保护层开采穿层钻孔抽采最大化技术研究
3.
Gas Drainage by Boring Near Seam at 43001 Coal Face
43001采煤工作面上邻近层穿层钻孔瓦斯抽放
4.
Effect Analysis of Experiental Stage on Mohaupt Blasting with Drilling Through Coal Seams in Cuimiao Coal Mine
崔庙煤矿穿层钻孔聚能爆破实验阶段效果分析
5.
Gas Drainage Technology with Borehole Through Protected Seam for Up Protective Seam Mining
开采上保护层被保护煤层穿层钻孔抽采瓦斯技术
6.
Permeability-Increasing Theory of Array Crossing Boreholes Using Blowout-Inducing and Its Application on Gas Drainage in Outburst Coal Seams
突出煤层穿层钻孔诱导喷孔孔群增透机理及其在瓦斯抽采中的应用
7.
Study on Technology of Bores Through Coal and Rock Seams Draining Long Distance Pressure Relief Gas in Bed Plate Tunnel;
底抽巷上向穿层钻孔抽放远程卸压瓦斯技术研究
8.
3）The starting-crack location and pressure and direction of hydraulic fracture bore which through many coal delaminations mostly lies on the intensity of furthest-weak coal delamination and interface.
3）穿层钻孔起裂位置、方向及起裂压力主要受最弱煤分层及分层层面强度的影响。
9.
The analysis and application of specific gravity of slurry in bore pile construction through sand seam
穿过砂层钻孔桩施工中泥浆比重的分析与应用
10.
Boring technology of pile foundation of bridge to penetrate multilayer of karsts
桥梁桩基穿越多层岩溶地段的钻孔技术
11.
To make a hole in or through something with or as if with a drill.
钻孔，打洞用或似用钻打洞或穿孔
12.
Construction Technology for Bored Pile Close to the Flood Wall through Riprap Layer
紧贴防汛墙并穿越抛石层的钻孔灌注桩施工技术
13.
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
14.
Application of Triangular Drilling Rod to Gas Drainage Borehole Drilling in Medium Soft Seam
三棱钻杆在中软煤层顺层瓦斯抽排钻孔的应用
15.
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
16.
DISCUSSION OF TECHNOLOGY FOR DISPLAYING THE BORE STRATA HISTOGRAM IN-PHASE WITH DRILL
钻进时同步显示钻孔地层柱状图技术探讨
17.
Construction Methods for Rotary Excavating Drilling Machine for Pile Foundation of Weak Geological Layer
软弱地质层桩基旋挖钻机钻孔施工工法
18.
Cuttings and core from the drill-holes have intersected conglomerate bands.
钻粉和岩心已穿过了砾岩夹层。