1.
Experimental Studies of Rock Drillability and Rock Mechanics of Deep Well-bore
深部井眼岩石可钻性与岩石力学特性实验研究
2.
Rock drillability investigation for ultra-deep well drilling at thrust structure of Kuqa depression
库车坳陷山前构造超深井岩石可钻性研究
3.
Interaction Model between Formation and Bit during the Elliptic Distribution of Rock Drillability
岩石可钻性呈椭球型分布时地层与钻头相互作用模型
4.
physical-mechanical properties and drillability of rocks
岩石物理力学性质与可钻性
5.
Study on Rock Drillability of the Tamtsag Basin
塔木察格盆地岩石力学参数和可钻性实验研究
6.
This drill can bore through rock.
这台钻机能钻透岩石.
7.
A needle-shaped drill for boring holes in rock or masonry.
钻头，钻石器，钻孔器用于在岩石或砖石上钻孔的针形钻
8.
Study on Electroplated Diamond Bit for Extra-hard, Compact and Weak-abrasiveness Formation;
坚硬致密弱研磨性岩层电镀金刚石钻头研究
9.
Development of the software on the diamond bit type selection according to formation rock property
根据地层岩性进行金刚石钻头选型的软件开发
10.
Study on Nonlinear Dynamics Action of Integrated Bit-Rock-Drillstring-Well System;
钻头—岩石—钻柱—井壁互作用下系统耦合非线性动力学研究
11.
diagonal cut rock drill plus bits
对角十字形岩石钻头
12.
rock-bit interaction model
岩石-钻头互作用模式
13.
rock-bit interaction
岩石与钻头互相作用
14.
Geologists, scientists who study rocks,indicate the likely places to the oil drillers.
研究岩石的科学家即地质学家给石油钻井工指明可能产生油处。
15.
Magnetic Petrology of the High Fe-Ti Eclogite from the Chinese Continental Scientific Drilling(CCSD) Main Hole
中国大陆科学钻探主孔高铁钛榴辉岩的磁性岩石学
16.
Diamond core drilling equipment conventional system
GB/T16950-1997金刚石岩心钻探钻具设备
17.
drill ,electric, hand-held (incl. rock drills)
电动钻具,手持式（包括岩石钻具）
18.
The strength of rock may be generally regarded as a measure of resistance of rock in breaking-up.
岩石坚固性可视为岩石抵抗破坏的一种度量。