1.
Design of a Rotating Blow-out Preventer(RBOP) with a New Sealing Structure
一种新型钻具密封结构的旋转防喷器的设计研究
2.
Design and Analysis on Finite Element of New Type DTH Hammer Drilling with Eccentric Simultaneous Casing
新型偏心跟管钻具的设计与有限元分析
3.
A large tool for boring into the earth.
土螺钻，地螺钻一种用来钻土地的大型工具
4.
Structural Design and Mechanism Study on Water-saving Rotary Percussive Devices;
节水型回转冲击钻具结构设计与钻进机理研究
5.
Study of Environment-friendly Corrosion Inhibitor for Drill Tool in Saltwater Drilling Fluids;
盐水钻井液用钻具的环保型缓蚀剂的研究
6.
A NEW METHOD OF SOLVING BUILD-UP HOLE ANGLE PROBLEM ON PENDULUM ASSEMBLY WHILE WOB IS INCREASING
解决钟摆钻具在大钻压下增斜问题的新思路
7.
Application of two kinds of new drilling tool in rock-soil project exploration
两种新钻具在岩土工程勘察中的应用
8.
The new type of rheology controller has its application potential in drilling, Enhanced Oil Recovery (EOR) and liquid transportation drag reduction.
这种新型流变控制剂在钻井、提高采收率以及流体输送减阻中具有潜在应用价值。
9.
This new model of drilling machine can bore through solid rock ten metres deep.
这台新型钻机能钻透十米厚的坚固岩石。
10.
Application of pneumatic clip for oil drilling rig
新型气动钻杆卡瓦在钻井生产中的应用
11.
Study on New Drilling Force Model of Vibration Drilling and Vibration Drilling with Invariable Parameter and Variable Parameter;
振动钻削新钻削力模型及定、变参数振动钻削的研究
12.
Any of numerous hand tools for boring holes.
钻孔工具，手钻钻孔用的手持工具
13.
auger with valve
(钻浅井用) 带阀螺旋钻具
14.
A tool used for drilling.
钻头用于钻孔的工具
15.
Research on Design and Forming Process of the First Moulds of Matrix PDC Bits;
胎体式PDC钻头基础模具设计与成型工艺的研究
16.
An Analysis on Chinese Die & Mould Industry International Competitiveness by Diamond Model;
基于“钻石”模型的我国模具产业国际竞争力分析
17.
The Study on Mathmatical Models for the Chinese Multi-facet Drill Based on the GrindSmart 620XS Tool Grinding Machine;
基于GrindSmart 620XS工具磨床的群钻数学模型研究
18.
Research on the Development of Ninghai Stationery Industrial Clusters based on Diamond Model;
基于钻石模型的宁海文具产业集群发展研究