bit pressure drop是什么意思

网络释义

用法例句

Based on the drilling effects of 75 mm wire-line coring drilling by CS14 fully hydraulic driving head drill in Kangbao copper mine and polymetallic ore in Mongolia,the paper made the analysis on the advantages and disadvantages compared with spindle drilling machine and put forward the opinion that driving head drill was the trend in developing geological coring drill in China.

通过CS14型全液压动力头钻机在河北康保铜矿、内蒙古黄旗多金属矿2个矿区进行Φ75 mm绳索取心钻探效果,分析了全液压动力头钻机相对于立轴式钻机的优点及其不足,提出动力头钻机应是我国地质岩心钻机大力发展的趋向的看法。

The conic extruding bit usually be put into use when adopting percussionrotaryextruding drilling method to drill.

在冲击回转挤压成孔的钻进中通常采用圆锥型的挤压钻头，这种钻头在松软地层中的钻进效率很高，但在高围压下的中、硬塑性地层中的钻进效率明显降低。

compensator protector

钻头压力补偿器的保护杯

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

easing the bit in

钻头轻压慢转钻进地层

drill(ing) head

钻头; 主轴头; 钻床床头箱; 钻削动力头;钻头头部, 钎头

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

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

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

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

tension-control cylinder

控制钻头给进的液压缸

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

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

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

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

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

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

bit's directional cutting ability

钻头的定向切削能力

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。

pressure balanced drilling bumpersub

压力平衡式钻井震击器