According to the problem of low drilling efficiency in one bridge construction,the authors designed a new-type drilling scraper used in the project.
针对某桥梁桩基础施工过程中普遍存在钻进效率不高的具体情况,作者根据该工程地质条件,设计了一种新型的刮刀钻头刀片,在实际的工程施工中,取得了良好的经济效益和社会效益。
Their production cost is only 0.1per cent that of the imported diamond tools.
它的生产成本只是进口钻石刀具的千分之一。
a diamond pencil
(割玻璃用的)钻石刀
combined pipe tap and drill
管用钻孔攻丝复合刀具
drill ,electric, hand-held (incl. rock drills)
电动钻具,手持式（包括岩石钻具）
Drilling is performed with a rotating tool called a drill.
钻孔是用一个称为“钻头”的旋转刀具进行的。
Research on Grinding Method of Drilling Cutter's Flank
基于钻削刀具后刀面刃磨方程建立的研究
Tools for woodworking--Drill--Terminology
GB/T14897.4-1994木工刀具术语钻头
combined taper pipe tap and core drill
扩孔钻和锥管丝锥复合刀具
Diamond core drilling equipment conventional system
GB/T16950-1997金刚石岩心钻探钻具设备
Diamond core drilling equipment--Wire line system
GB/T16951-1997金刚石绳索取心钻探钻具设备
Selection of shield cutterhead and tool for Chengdu sand-pebble layer
成都砂卵石地层盾构刀盘与刀具选择
Study on Bottom Hole Flow Field of B9M-PDC Scraper Bit
B9M型金刚石复合片刮刀钻头井底流场研究
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
Research on Cutting Performance of Coated Tools under Dry Drilling Al-Si Alloy;
涂层刀具干式钻削铝硅合金的切削性能研究
Cross-entropy approach for tool path planning of PCB drill machines
求解PCB钻孔机刀具路径规划的交叉熵方法
"Effective Region" Characteristic of Tool Lifespan Improvement in Vibration Drilling of Micro-hole
振动钻削微孔提高刀具寿命的“有效区”特征
The Study on Drilling-instruments Requirements Planning System of Oil-drilling ERP Based on Agent
基于Agent的石油钻井ERP钻具需求计划系统研究
Study of Cutter Layout Design of Full-face Rock Tunnel Boring Machine
全断面岩石隧道掘进机刀盘刀具布置方法研究
