1.
The Arithmetic Research and System Design of Measuring the Drill Hole of Printed Circuit Board;
PCB钻孔检测算法研究及系统设计
2.
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
3.
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
4.
Study and Application of Some Key Techniques of High Accuracy and High Speed PCB NC Drilling Machine;
高精高速微孔PCB数控钻床关键技术的研究与应用
5.
Application of DOE on Parameter Optimization in PCB Micro-drilling Process
实验设计(DOE)技术在PCB微孔钻削工艺参数优化中的应用
6.
tap(ping) drill
螺丝孔钻，螺丝底孔钻
7.
The sorker was drilling.
此工人在用钻孔机钻孔。
8.
Research and Development of Embedded NC System Used on a PCB Drill;
嵌入式PCB钻床数控系统的研究和开发
9.
Study on PCB Drill Controller Based on Dual ARM MCU;
基于双ARM的PCB钻床控制器的研究
10.
Study on High Accuracy and High Speed PCB NC Drilling Machine Based on PLC
PLC型高速高精度PCB数控钻床的研制
11.
Research and Development of Drill' Quality Detection System
PCB数控钻床的钻针质量检测研究与开发
12.
Any of numerous hand tools for boring holes.
钻孔工具，手钻钻孔用的手持工具
13.
Effects of PCB Vias on High-Speed Signal Transmission
PCB中过孔对高速信号传输的影响
14.
Study on the method of defect circle hole detection in PCB microscope image
PCB显微图像缺陷圆孔检测方法研究
15.
kelly for well-drilling machiens
旋转钻孔,钻井机用
16.
A tool used for drilling.
钻头用于钻孔的工具
17.
boring method (of pulp sampling)
（纸浆取样）钻孔法
18.
Drilling 50 yards deep,
钻孔至50码深处，