The article mainly introduces the factors which influence the brightness of oil drops, the solutions to them, the standard of oil drop selection and methods of adjustment in Millikan Oil Drop Experiment .
主要介绍了密立根油滴实验中影响油滴亮度的因素、解决方法 ;油滴的选择标准及调整方法 ,实验证明效果很好。
According to the practical requirement,a continuative tubing length measuring device is developed.
根据油田井下作业的实际需要,研制了一种油管长度在线连续测量仪。
According to the characteristic of running tubings, this measurer adopted an indirect method to realize intelligent online measurement of tubing length.
根据油管下放过程的特点 ,采用间接测量方法实现油管长度的在线智能测量。
To minimize the energy loss due to piston shoulder in sealing section,the formula to calculate the gap between piston and inner surface of cylinder block and oil sealing length are provided.
以活塞台肩封油段的能量损失最小为优化目标,给出了活塞与缸体之间间隙以及封油长度的计算方法。
Research on the Laser Doppler Measurement Technology for the Length of Continuous Oil Tubes
油管长度激光Doppler测量技术的研究
The foam or protective sheath will block the function, must be removed before installation.
3本产品若超过油管长度可依油管长短来做安装。
On-line Length Measuring System for Continuous Oil Tubes by Laser Doppler Technology
连续油管长度激光多普勒在线测量系统
In such wells, the buckling critical load tends to be a constant with the increase of tubing length.
在水平井眼中，随着连续油管长度的增加，其临界失稳载荷趋于一个常数。
Study on Residual Strength Assessment Technology for Oil/Gas Transportation Corroded Pipe in Service;
油气长输腐蚀管道剩余强度评价技术研究
Study on Assment Method of Oil and Gas Pipeline Residual Strength
油气长输管道剩余强度评价方法的研究
Optimization and Error Analysis for Petroleum Steel Pipe Length Measuring System
石油钢管长度测量系统优化设计及误差分析
Research on Variable Intake Pipe Length and Variable Valve Timing for TJ376QE Gasoline Engine;
TJ376QE汽油机可变进气管长度和可变配气相位的研究
Activity-Based Cost Management Apply in Changqing Oil Production Plant NO.2
长庆油田采油二厂作业成本管理研究
Laboratory testing also shows that the math model is suitable for the measuring of tubing string length ,of which accuracy is 1‰.
室内试验也表明，应用该数学模型对油管柱进行长度测量的精度可达1‰。
Comparison and Analysis about Type of Ф457～610 mm Pipeline for Long-distance Oil Transportation
Ф457～610mm长距离输油管道的管型比较分析
Research on Petroleum Pipeline Project Schedule Management System
石油管道工程进度计划管理系统研究
Reliability Analysis for Residual Strength of Corroded Oil and Gas Piping
油气腐蚀管道剩余强度的可靠度分析
a container with a long nozzle to apply oil to machinery.
有长管的输送油到机器的容器。
carbide rectangular threading insert for petroleum pipe
石油管螺纹硬质合金长方形刀片
Study on Quantitative Risk Assessment for the Long-Distance Oil/Gas Pipelines in Service;
在役油气长输管线定量风险技术研究
The Study of Production Capability Construction Project Management in PetroChina Changqing Oilfield Company;
长庆油田公司产能建设项目管理研究
Appraisement on Operrating Benifet for Jing-xian Pipeline of Chang-qing;
长庆靖咸输油管道运营效益评价研究