1) stiffness of twist drill
钻头刚度
2) drill collar stiffness
钻铤刚度
3) diamond drill bit
金刚石钻头
1.
Development and application of diamond drill bits in high altitude mining area;
高海拔矿区用金刚石钻头的研制与应用效果
4) diamond bits
金刚石钻头
1.
The experiments on several Japanese natural diamond bits;
几种日本天然金刚石钻头的试验
2.
In this paper, the author have introduced the status quo of diamond bits and tools' wide-adaptability, and discussed its research meaning, necessaries as well as the supporting work of needs in future.
介绍了广谱性孕镶金刚石钻头及工具的现状,论述其研究意义、必要性及未来需要的支持性的研究工作。
3.
Particular uses of the method are described in regard to the evaluation of φ60mm wireline diamond bits.
根据TOPSIS法原理，提出一种同时考虑“理想方案”和“负理想方案”的金刚石钻头综合评价灰色关联分析法。
5) diamond bit
金刚石钻头
1.
The experimental study on the new pattern diamond bit with high drilling speed;
新型高时效金刚石钻头试验研究
2.
Efficient methods applied in skidding strata with diamond bit and its history cases;
金刚石钻头钻进“打滑”地层采用的有效方法与实例
3.
Field test of electroplated diamond bit and analysis of its performance;
电镀金刚石钻头野外试验及效果分析
6) carborundum drill
金刚砂钻头
补充资料：大直径牙轮钻头
大直径牙轮钻头
大““钻头篡
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