英语释义

• a drill bit that has hardened rotating rollers

片语

roller-bit hole rig牙轮鉆机

sealed roller bearing bit密封滚动轴承鉆头

roller core bit取心牙轮鉆头

cross roller rock bit十字形四牙轮鉆头

roller r bit牙轮鉆头

roller cone bit牙轮鉆头

roller bearing bit滚柱轴承鉆头

roller-bit rotary rig牙轮鉆机

roller cutter bit牙轮鉆头

英汉例句

• a modern design method, by which computer aided optimum design is used through the whole process of roller bit design, is introduced in this article.

  介绍一种牙轮鉆头的现代设计方法。设计过程全部使用计算机辅助设计和优化设计。

• the failure analysis of the high speed roller bit bearing.

  高速牙轮鉆头轴承的失效分析。

• the rock-breaking mechanism of roller bit teeth is always a hot focus and difficulty in the fields of drilling, and it receives widely researchers attentions in the rock mechanics and the engineering.

  牙轮鉆头牙齿破巖机理研究一直是鉆井工程的一个热点和难点，备受巖石力学与工程界的关注和重视。

• the investigation points out that one of the most critical factors of the roller bit service life are the service life of bearing system.

  经研究发现，影响牙轮鉆头使用寿命的最关键因素之一就是轴承系统的寿命。

• analysis of the side-wall pattern shows that the side-cutting process of the roller bit is related to not only the teeth surface design but also the rock property and the …

  井壁模式分析说明，牙轮鉆头的侧向切削过程不仅与齿面结构有关，而且与巖石性质、鉆井参数有关。

• the investigation directions of the high speed roller bit sealing are put forward in the future.

  针对这些情况提出高速牙轮鉆头轴承密封在今后的研究方向。

• analysis of the side-wall pattern shows that the side-cutting process of the roller bit is related to not only the teeth surface design but also the rock property and the drilling parameters.

  井壁模式分析说明，牙轮鉆头的侧向切削过程不仅与齿面结构有关，而且与巖石性质、鉆井参数有关。

• the method for designing the cutting structure of a mono-cone roller bit is discussed on the basis of geometric and kinematic analyses of the bit.

  从研究单牙轮鉆头几何学、运动学入手，着重探讨单牙轮鉆头齿面结构设计方法。