1.
combination center drill
组合中心钻，复合中心钻
2.
compound center drill without jacket
不带护套复合中心钻
3.
mixed oil drilling rig
复合式石油钻井钻机
4.
Analysis on balling up caused by helicoid hydraulic motor bypass valve failure in combined drilling technology
复合钻井过程中螺杆钻具旁通阀刺漏造成钻头泥包分析
5.
Research on Deep Hole Wire Line Core drilling Tech.in Complicated Stratum
复杂地层中深孔绳索取心钻探技术研究
6.
Research and Application of Diamond-impregnated PDC Bit or Drilling in Medium Hard Rock Formation
中硬岩层钻进孕镶金刚石复合片钻头的研究与应用
7.
combined pipe tap and drill
管用钻孔攻丝复合刀具
8.
polycrystalline diamond compact bit
聚晶金刚石复合片钻头
9.
polycrystalline diamond compound bit
多晶金刚石复合钻头
10.
balancing centering machine
平衡-钻中心孔机床
11.
spotfacing and centering machine
平端面钻中心孔机床
12.
Optimization Research on Drilling Parameter with Downhole Motor;
复合钻进条件下钻进参数优选方法研究
13.
Researches on drilling CFRP(carbon fiber reinforced plastics) with diamond electroplated drill bit
电镀金刚石钻头钻削碳纤维复合材料研究
14.
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
15.
Improvement of penetration rate with hydraulic pulsating-cavitation jet compound drilling technology
利用水力脉冲空化射流复合钻井技术提高钻速
16.
Application of Composite Pressured Post grouting Bored Pile Foundation
钻孔灌注桩后压力注浆复合桩基础在银河大厦工程中的应用
17.
Study on the Mechanical Characteristics of Bored Shaft Lining Consisting of Inner Steel Sheet and Reinforced Concrete in 600m Thick Alluvium;
600m深表土中内层钢板—钢筋混凝土复合钻井井壁力学性能的研究
18.
The Application Research of Screw Drill Press Concrete Stake Technology in the Complex Foundation;
螺旋钻孔压灌混凝土成桩技术在复合地基中的应用研究