1.
compensator protector
钻头压力补偿器的保护杯
2.
Research on Optimization Design for Power Unit of Full-Driller
全液压车载钻机动力头优化设计研究
3.
easing the bit in
钻头轻压慢转钻进地层
4.
drill(ing) head
钻头; 主轴头; 钻床床头箱; 钻削动力头;钻头头部, 钎头
5.
Study on the Bottom Hole Pressure Properties of the Oscillating Pulse Jet-Nozzled Bit
振荡脉冲射流喷嘴钻头井底压力特性研究
6.
Analysis Study on Feeding System of All-hydraulic Power Head Type Drill Rig;
全液压动力头式钻机给进系统的分析研究
7.
Application Effect and the Analysis on CS14 Fully Hydraulic Driving Head Drill
CS14型全液压动力头钻机的生产应用效果及分析
8.
On Intelligent Integrated Optimization of the Transmission Mechanism in the Driving Head of a Hydraulic Drill for Underground Anchorage
液压土锚钻机动力头传动机构的智能集成优化
9.
tension-control cylinder
控制钻头给进的液压缸
10.
Study on the Drivin of Cavity-front Constant-pressure Impact-rotary Hydraulic Roofbolter;
前腔常压式冲击旋转型液压锚杆钻机动力头的研究
11.
Signal Processing of Near-Bit Weight on Bit and Torque
近钻头钻压、扭矩测量中微弱信号处理
12.
Research on Dynamics of Driver & Hydraulic Driving System of Z6500 HDD Power Pack
Z6500水平定向钻机动力头及其液压驱动系统动力学研究
13.
Transient dynamics analysis for driving head of valvelless impact-rotary hydraulic roofbolter based on MSC.PATRAN
基于MSC.PATRAN的无阀冲击旋转型液压锚杆钻机动力头瞬态动力学分析
14.
The Research on Optimal Design and Dynamic Simulation for Driving Head of Valvelless Impact-Rotary Hydraulic Roofbolter;
无阀冲击旋转型液压锚杆钻机动力头优化设计与动态仿真研究
15.
Analysis of forces on the graphite mold of core bit for oil during hot pressing
石油取芯钻头石墨模具在热压过程中的受力状况分析
16.
bit's directional cutting ability
钻头的定向切削能力
17.
This paper has introduced a set of test device to examine the loads on teeth of the bit at different rotary speed and under high bit-weight.
本文介绍了一套测试装置,用以测试钻头在大钻压下任意转速的牙齿受力。
18.
pressure balanced drilling bumpersub
压力平衡式钻井震击器