1.
high-thrust drill
强力钻机，高推力钻机
2.
stripping in and out of the hole
用防喷器在压力下强行起下钻
3.
Theoretical and Experimental Research on Reverse Circulation Constant Sampling and Powerful Compressed Air Spurting Drilling Technology;
反循环强力气体喷射钻进技术理论及试验研究
4.
Missiles that are simple kinetic penetrators ram through earth by dint of their extreme impact momentum.
单纯动力钻地飞弹纯粹利用强大的冲击动量冲入地下。
5.
Application of High-pressure Rotary Concrete-jetting Technology in the Reinforcement of the Bearing Layer of Rock-socketed Cast-in-place Pile Bottom
高压旋喷注浆法在钻孔灌注嵌岩桩底持力层补强加固中的应用
6.
Strong sense of responsibility and teamwork spirit; Initiative and capable of self-study and hands on.
爱钻研、具备很强自学能力及动手能力；具有强烈责任感和团队协作精神。
7.
The Strength and Modal Analysis of GCF-1500 Impact Drilling Machine Tower;
GCF-1500冲击钻机钻塔强度与模态分析
8.
Study on Dynamic Characteristics and Failure Mechanism of Drill String in Air Drilling
气体钻井钻柱动力学特性及钻柱失效机理研究
9.
drill(ing) head
钻头; 主轴头; 钻床床头箱; 钻削动力头;钻头头部, 钎头
10.
ANALYSING DYNAMIC CHARACTERISTICS OF DRILLING STRING EDDY OF INSIDE CONTAINING DRILL FLUID
内含钻井液的钻柱涡动动力特性分析
11.
The Dynamic Analysis on Drilling System of ZY-200 Type Rotary Drilling Rig;
ZY-200型旋挖钻机钻挖系统动力学分析
12.
Structural dynamic analysis on ultrasonic driller and drilling experiments
超声钻结构动力分析与钻削实验研究
13.
AN APPLICABLE METHOD FOR ESTIMATION OF FORMATION DRILLING STRENGTH AND BIT WEAR
地层抗钻强度与钻头磨损实用评估方法
14.
On the contrary, the great books are not dusty remains for scholars to investigate, they are, rather, the most potent civilizing forces in the world today.
经典名著绝不是供学者钻研的故纸堆，恰恰相反，它们是今日世界上最强大的文明力量。
15.
3）The starting-crack location and pressure and direction of hydraulic fracture bore which through many coal delaminations mostly lies on the intensity of furthest-weak coal delamination and interface.
3）穿层钻孔起裂位置、方向及起裂压力主要受最弱煤分层及分层层面强度的影响。
16.
The reliable explanation and the less error of forecasting will be helpful in predicting the drilling cost and planning the projects in management.
模型较强的解释力度和较小的预测误差，将有助于钻井成本预测和计划管理。
17.
pressure balanced drilling bumpersub
压力平衡式钻井震击器
18.
horizontal borehole pressure recorder
水平钻孔压力记录器