1) pin drill
针头钻
2) drill pin
钻针
1.
When manufacturing PCB, the drill pin’s quality is an important factor to ensure the PCB’s eligibility.
在印制电路板制造过程中,钻针的质量对于保证所钻电路板的合格性起着非常重要的作用。
3) bit
[英][bɪt] [美][bɪt]
钻头
1.
Research of diamond weak combined bit for high geo-stress stratum drilling;
弱包镶金刚石钻头在高地应力地层中的应用研究
2.
Research into the new electroplating weak-holding diamond bits;
新型电镀弱包镶金刚石钻头研制
3.
Research,development and application of the series core drilling bit for uranium exploration;
铀矿勘查岩心钻探系列钻头的研制、开发与应用
4) drill
[英][drɪl] [美][drɪl]
钻头
1.
Research of the Edge Grinding with the Simplified Conical Drill;
简化钻头圆锥面刃磨法的研究
2.
Dynamic Model of Drill during Vibrational Drilling;
振动钻削时钻头的动力学模型
3.
A Forecasting System for Wear of Drill;
基于电流信号钻头磨损状态预报系统
5) drill bit
钻头
1.
Geared hydraulic motor design for drill bit of rotary well wall coring utensil;
旋转式井壁取芯器钻头的齿轮液压马达设计
2.
Investigation in the direction controlling system of drill bit on horizontal auger;
套管螺旋钻机钻头控向系统的研究
3.
The quantitative calculation of the forces between drill bit and formation is vital for drilling trajectory control.
定量计算钻头与地层之间的作用力对井眼轨迹控制具有重要意义。
6) drill bits
钻头
1.
In this paper,by testing and analyzing,it is showed that the performance of drill bits are influenced by various factors in the hot pressure sintering process of intermediate-frequency furnace.
通过试验和分析 ,说明在中频热压烧结金刚石钻头过程中 ,钻头性能受各种因素综合影响 ,其主要因素是电磁场影响到胎体粉料和金刚石分布 ,模具配合间隙引起胎体的流失而导致金刚石浓度发生变化。
2.
Through the correspondence between the preferred targets for drill bits and the factors that affect the bit,a mathematical model is established.
针对目前钻头选型的常用方法,主要讨论邻井钻头优选算法,该算法根据邻井钻头使用数据,对钻头的优选指标与钻头在钻井过程中的影响因素之间的对应关系建立数学模型,利用最小二乘法预测出各种钻头的优选指标,选择其中满足优选条件的钻头型号的方法。
补充资料：冻土钻(见取土钻)
冻土钻(见取土钻)
dongtuzuan冻土钻见取土钻
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条