1.
Research of Numerical Simulation of Process of Mine Gas Pre-draining by Pinnate Boring
羽状钻孔预抽矿井瓦斯过程的数值模拟研究
2.
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
3.
Centrifuge Tests on Bearing Character of Bored Pile;
钻孔桩受力性状的离心模型试验研究
4.
Development of Cast-in-place Bored Pile Technology in Hydraulic Project;
钻孔灌注桩在水利工程中的应用现状
5.
Current situation and development of bolt drilling equipment used in collieries
煤矿锚杆支护钻孔设备的现状及发展
6.
The rapid drawing of borehole log with EXCEL and MAPGIS
应用EXCEL和MAPGIS快速生成地质钻孔柱状图
7.
tap(ping) drill
螺丝孔钻，螺丝底孔钻
8.
The sorker was drilling.
此工人在用钻孔机钻孔。
9.
Research on Chip Removal and Cutting Tool Condition Monitoring Technology in BTA Deep Hole Drilling;
BTA深孔钻削排屑与刀具状态监测技术研究
10.
Numerical Simulation of Bearing Character of Bored Pile by Post-Grouting in CCTV New Building;
央视新址后压浆钻孔灌注桩承载性状数值模拟
11.
Study on the Influence of Mudcake on Engineering Behavior of Bored Pile;
泥皮性状对钻孔桩工程特性的影响研究
12.
Growth Rate and Drilling Rate of Free-living Conchocelisof Varietal Porphyra yezoensis;
条斑紫菜自由丝状体的生长率及钻孔率
13.
Bore Information Management and the Method Improvement of Auto-Generating Histogram
钻孔信息管理和柱状图成图方法的改进研究
14.
Influence of Pile Bottom Sediment on the Bearing Property of Rock-socket Filling Pile
桩底沉渣对嵌岩钻孔灌注桩承载性状影响研究
15.
Impact of Post Grouting Process of Pile Bottom on Bored Pile Bearing Behavior
桩端后注浆工艺对钻孔灌注桩承载性状的影响
16.
Experimental Study on Bearing Behavior of Bored Belled Piles in Strong Weathered Granite
强风化花岗岩中钻孔扩底灌注桩承载性状试验
17.
Any of numerous hand tools for boring holes.
钻孔工具，手钻钻孔用的手持工具
18.
kelly for well-drilling machiens
旋转钻孔,钻井机用