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
Dynamic model of roller bit with nine degrees of freedom;
九自由度牙轮钻头动力学模型研究
Computer simulation for the side-cutting of roller bits;
牙轮钻头侧向切削的计算机仿真
Model to determine rock drillability by roller bit;
牙轮钻头可钻性级值的确定方法
Blast hole tricone rock bits
GB/T13343-1992矿用三牙轮钻头
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
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
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
bridge of the bit
四牙轮钻头牙轮支架
4.14 Drilling with cone (drag) bit in the section.
此段地层采用牙轮（刮刀）钻头钻进。
Prediction and evaluation of systematic reliability of tricone bit
三牙轮钻头系统可靠性的预测与评估
Simulation model of drilling process of three-cone bit
三牙轮钻头破岩过程计算机仿真模型
Drilling with cone( drag) bit in the section.
此段地层采用牙轮（刀）头钻进。
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
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
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
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
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
cone type roller bearing rock bit
滚柱轴承锥形牙轮钻头
insert rock bit
镶硬合金齿牙轮钻头
CAD system for three－cone bit
三牙轮钻头计算机辅助设计系统的研究
An Integrated Data Management Platform for Design and Manufacturing Process of Three Cone Bit
三牙轮钻头设计制造过程的集成数据管理平台