The proltems that the holes drilled are lialle to he ollate and the drills are lialle to be troken while drilling holes in thin plates are analysed and proled in this paper,the mechanical conditions of the drill being forced is analysed,and also the improving process of drilling holes in thin plates is trought forward.
对薄板钻孔容易钻扁孔、钻头易折断的问题进行了探讨,分析了钻头的受力情况,并提出了薄板钻孔的改进办法。
See Engineering Data section for end flange dimensions and drilling templates.
请参阅《工程技术资料》章节，了解法兰尺寸和钻孔模板。
See' Technical Data" section for end flange dimensions and drilling templates.
参阅《工程技术资料》章节，了解连接端口法兰尺寸和钻孔模板。
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
Numerical Simulation Optimization for Release Pressure Bore Hole of Roadway Floor in Three Soft Coal Seam
三软煤层巷道底板钻孔卸压的数值模拟优化
dowelling in the length, of coniferous wood
针叶树木板,经纵钻孔的
They were drilling Boles in a steel plate
他们在钢板上钻孔。
They drilled through a Board
他们在木板上钻孔。
I drilled the board through.
我把木板钻了一个孔。
He bored a hole through a board with a drill.
他用钻在板上钻了一个孔。
The worker bored a hole through the board.
工人在木板上钻了一个孔。
Drill three holes in the floor/base plate for anchoring the leg.
在地面/底板上为锚固支柱打钻三个孔。
Advanced Drilling Technology of Micro-Via in PCB
印制电路板超细微钻孔先进加工技术
Technology of 1000 meter directional borehole at large diameter for mine gas extraction
顶板大直径千米长钻孔抽采瓦斯技术
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。
Borehole Televiewer and Borehole Elastic Modulus Test for Transmission Cable Tunnel in Singapore
钻孔电视和钻孔弹模在新加坡电力电缆隧道工程中的应用
Research on Technology of Fast Speed Drill Pipe Bit Based on Breaking Roadway Floor Ore-forming
基于破碎巷道底板成孔的快速钻杆钻头技术研究
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。