1.
Heat treatment and wear resistance of 55SiMoV roller for the mine roller bit
矿用牙轮钻头55SiMoV滚柱的热处理及耐磨性能
2.
Study on the carburizing and niobiumizing process and the wearing resistance of the mine roller bit
矿用牙轮钻头碳-铌复合渗及耐磨性能研究
3.
Blast hole tricone rock bits
GB/T13343-1992矿用三牙轮钻头
4.
bridge of the bit
四牙轮钻头牙轮支架
5.
4.14 Drilling with cone (drag) bit in the section.
此段地层采用牙轮（刮刀）钻头钻进。
6.
Drilling with cone( drag) bit in the section.
此段地层采用牙轮（刀）头钻进。
7.
AN APPLICATION OF ABRASIVE WATERJET INTO CUTTING OF CONE BIT
磨料水射流在切割牙轮钻头中的应用
8.
The development and application of a new type rock bit with bearing liner structure;
镶套轴承结构牙轮钻头的开发与应用
9.
The new-type mono-metal floating seal for roller bit
牙轮钻头用新型单金属浮动密封研究
10.
Method of Calculating Three Cone Bit Diameter by Using Excel
用Excel实现三牙轮钻头直径计算的方法
11.
Application of Roller Bit Combination Drilling Technology in Nappe Strata of Qingxi Oilfield
牙轮钻头复合钻进在青西推覆体地层的应用
12.
The vertical Interaction Model of cone Bit Teeth-rock
牙轮钻头牙齿与岩石垂向互作用仿真模型
13.
cone type roller bearing rock bit
滚柱轴承锥形牙轮钻头
14.
insert rock bit
镶硬合金齿牙轮钻头
15.
APPLICATION AND RESEACH-DEVELOPMENTOF WATER JET TECHNOLOGY IN ROCK BIT
水射流技术在牙轮钻头中的应用与研究进展
16.
STUDY OF THE LOAD ON THE JOURNAL BEARINGS OF THE TRICONE BIT BY THE METHOD OF ANALYSIS OF THE RANDOM PROCESS
用随机过程分析方法研究牙轮钻头轴承载荷
17.
The Research of the Longitudinal Vibration in Cone Bits-rock System;
牙轮钻头与岩石互作用下系统纵向振动研究
18.
Comparative analysis of drilling characteristics of dia- mond bits and roller bits
金刚石钻头与牙轮钻头钻井特点对比分析