1.
polycrystalline diamond compound bit
多晶金刚石复合钻头
2.
polycrystalline diamond compact bit
聚晶金刚石复合片钻头
3.
unit-type drill head
组合钻床钻头, 标准钻头
4.
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
5.
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
6.
Simulation Research on the Rock Breaking System of Bit Tooth-Row Composite Locomotion;
钻头齿圈复合运动破岩系统仿真研究
7.
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
8.
combination center drill
组合中心钻，复合中心钻
9.
Research on Diamond Enhanced Tungsten Carbide Composite Button and Its Bits;
金刚石—硬质合金复合齿及其钻头的研究
10.
mixed oil drilling rig
复合式石油钻井钻机
11.
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
12.
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
13.
Study on Bottom Hole Flow Field of B9M-PDC Scraper Bit
B9M型金刚石复合片刮刀钻头井底流场研究
14.
Development of polycrystalline diamond composite and its drilling bit for oil and gas
金刚石复合片及其石油、天然气钻头发展概况
15.
DEVELOPMENT AND TESTS OF LOW-TEMPERATURE ELECTROPLATED81/2" PDC CORING OIL BITS
低温电铸8(1/2)″复合片取芯油井钻头的研制与试验
16.
Study on Dry Biological Properties of Drilling Pipe Joint Material with 35CrMo Sulphurized-nitrided Compound Layer
钻杆接头材料35CrMo硫氮复合处理层的干摩擦学性能研究
17.
shaped insert bit
非球形硬合金齿钻头
18.
insert rock bit
镶硬合金齿牙轮钻头