1) bit factor
钻头因素
2) carbon steel drill
碳素钢钻头
3) carbon tool steel drills
碳素工具钢钻头
4) factors of drilling difficulty
钻探难度因素
5) 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
6) 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
补充资料：普通碳素钢
plaincarbonsteel：不含有意识添加的合金元素（即只含有碳和常存杂质Si、Mn、P、S、O或者还含偶存杂质Cu等）的钢。
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