drill bit的例句大全

Laser Welding Technology and Equipment of Diamond Core Drill Bit

薄壁金刚石工程钻头激光焊接技术及装备

Parameter Measurement and Transmission of the Drill Bit for Horizontal Directional Drilling

水平定向钻进钻头信息的测量与传输

The design and manufacture technique of drill bits with impregnated diamond and tungsten carbide bar are presented in this paper. The technique on the bit of impregnated and tungsten carbide bar with diamond composite is proposed.

介绍了针状硬质合金-金刚石复合型钻头的设计与制造工艺以及在孕镶针状硬质合金钻头基础上复合金刚石的研究方法。

An approach to prediction and post drill analysis of drill bit footage

钻头进尺的预测与事后分析方法

Application effect of coal mining drill bit jetting mud from bottom

底喷采煤钻头的使用效果

Current status in the development of drill bit grease

钻头润滑脂的发展现状

Application of theory of norm optimal control on the longitudinal vibration system of drill bit main shaft of pit digger for tree planting

范数最优控制理论在植树挖坑机钻头主轴纵向振动系统中的应用

When you tested the drill bit did you wear safety goggles?

你测试钻头时戴护目镜了吗？

Technique and Performance of Laser Welding Diamond Core Drill Bit

激光焊接金刚石薄壁钻工艺与性能

Rotary drill is a kind of drilling machine shattering rocks by cutting drill bit, also known as rotary cutting drilling machine.

旋转钻机是用切削式钻头破碎岩石的钻孔机械，也称为旋转切削式钻机。

The locknut is rotated to lock the spring chuck, so as to clamp a drill bit which is enabled to rotate along with the spindle to carry out the drilling processing.

通过转动锁紧螺母锁紧弹簧夹头从而夹紧钻头，使钻头跟随主轴旋转进行钻削加工。

molding ways of the drill bit comprise one-step forming and mosaic block type two-step forming.

钻头成型方式包括一次成型和镶块式二次成型。

Treatment Technique of Drilling Fluid for the Use of PDC Drill Bit

使用PDC钻头钻井液处理技术

Taking into account the collapsed soil buried on the drilling unit became loosen after the hole collapsed and drill bit being buried, the self-rescue device applied the idea of squeezing the collapsed soil back to the hole wall.

考虑到塌孔埋钻事故发生后，埋在钻具上方的塌落土体结构较为松散，自救装置采用了将塌落土体挤回孔壁的方法。

When the hole is collapsing and drill bit is being buried, with the help of auxiliary lift of steel cable, it can use the self-rescue device fixed on the rodless drilling unit to startup the self-rescue.

通过在无钻杆钻具上方安装自救装置，当塌孔埋钻事故发生时，可以通过启动无钻杆钻具自救装置，在钢丝绳的辅助提升作用下，进行自救。

This paper analyses that tip angle of drill bit influences on cutting capability and life of twist drill, when the material and shape of work piece is different.

分析了工件材料、形状不同时，钻尖顶角的大小对麻花钻切削性能及寿命的影响，介绍了麻花钻的钻尖顶角的选择。

The Application of Expert System in Drill Bit Design and Use

专家系统在钻头设计及使用中的应用

The Design and Make of a Small Drill Bit

小钻头设计与制造的改进

Study to Optimization Design for Hydraulic Parameters of PDC Drill Bit

PDC钻头水力参数优化设计研究

Analysis on the influence of alloying and heat treatment on drill bit materials

合金化及热处理对钻头材料影响之评析