The merit of funnel drilling machine and its practical example;
钻斗钻机的优点及其工程实践实例
"using routing, planing, circular sawing machines or automatic lathes [noisy occupation]"
使用钻板机、刨?机、圆锯机或自动车?〔高噪音工作类别〕
The Design on the Activities Template Drilling and Tapping Modular Machine Tool
活动模板式钻孔与攻丝组合机床设计
Pattern Punch: for punching holes in order to hang patterns on a hook.
样板钻孔机：为了把样板挂在钩子上,用它在样板上打洞。
a portable drill with a plate that is pressed against the chest to force the drill point into the work.
有一块可以把胸部压上来使钻头对准目标的金属板的手动钻机。
To bore(a shaft) with a trepan.
钻用钻井机钻（矿井）
Research and Development of the PCB Auto Locate Drill Based Optical Scanning;
印制板光学自动找正钻孔机研究与开发
high-thrust drill
强力钻机，高推力钻机
The Optimization Analysis of Machine Body Cross Beam and Carriage of Milling and Drilling Machine Tool for Machining Large-Sized Workpiece with Overlength Plane;
大型工件超长平面铣钻专用机床床身大梁与拖板的优化分析
Via Drilling Trial in Rigid-flex PCB with Acrylic Film and Its Mechanism
含丙烯酸胶膜刚挠结合板钻通孔试验及其机理研究
kelly for well-drilling machiens
旋转钻孔,钻井机用
churn-type percussion drill
无游梁绳式顿钻钻机
mixed oil drilling rig
复合式石油钻井钻机
The sorker was drilling.
此工人在用钻孔机钻孔。
This drill can bore through rock.
这台钻机能钻透岩石.
He bored a hole through a board with a drill.
他用钻在板上钻了一个孔。
dowelling in the length, of coniferous wood
针叶树木板,经纵钻孔的
brace countersink
钝角菊花形尖头板钻
Driving a nail into a stone slab/impossible to penetrate
青石板上钉钉,硬钻