The paper introduces the design process for oil lead jig for series 6105QB diesel engine body, with detailed analysis to the design of positioning and claming.
介绍 61 0 5 QB系列柴油机机体油道孔钻模的设计过程 ,对定位部分、夹紧部分的设计作了详细的剖
Study on Drilling Tests of PCB Through-Hole Drilling
钻PCB通孔钻切削性能的钻削试验研究
A hole or passage made by or as if by use of a drill.
钻孔，打洞用或似用钻打孔或通道
On the quality problems in drilling
浅谈如何防治钻孔灌注桩钻孔施工时质量通病
To draw off(a liquid) by piercing a hole in a cask or other container.
钻孔汲取通过在桶或其它容器上钻孔来汲取（液体）
Improving Growth of Street Trees by Boring the Rhizo$pheric Soil for Aeration
土壤钻孔通气法对行道树生长的改善
Reason and Precaution of Quality s General Defects in Drilling Perfusion Stake;
钻孔灌注桩质量通病的成因及其预防
tap(ping) drill
螺丝孔钻，螺丝底孔钻
The sorker was drilling.
此工人在用钻孔机钻孔。
Experimental and Drill Bit Flow Field Analyze of Run-through DTH Reverse Circulation Drilling Technique;
贯通式潜孔锤反循环钻进技术试验及钻头流场分析
Research of Application and Drilling Tool Optimization of Reverse Circulation Drilling Technique with Hollow-Through DTH Hammer
贯通式潜孔锤反循环钻进技术钻具优化及应用研究
Researches on the Key Technologies of Hollow-Through DTH Used in Gas Drilling
气体钻井用贯通式潜孔锤关键技术研究
STUDY OF CONNECTIVITY OF DISCONTINUITIES OF BOREHOLE BASED ON DIGITAL BOREHOLE IMAGES
基于数字钻孔图像的结构面连通性研究
Analysis and Application of Horizontal Ground Freezing Drilling-hole Trajectory in Construction of Metro Bypass
地铁旁通道水平冻结钻孔轨迹分析及应用
Quality Fault And Prevention Of Bored Pile Construction In Soft Foundation
软土地基钻孔灌注桩施工质量通病与防治
Any of numerous hand tools for boring holes.
钻孔工具，手钻钻孔用的手持工具
Simulation and Experimental Study on Down-the-Hole Drilling Fluid Field of the Hollow DTH Hammer Reverse Circulation Coring and Sampling Technology;
贯通式潜孔锤反循环取心（取样）钻进孔底流场模拟与实验研究
kelly for well-drilling machiens
旋转钻孔,钻井机用
A tool used for drilling.
钻头用于钻孔的工具