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- cleaning of oil pipeline 油管道清洗
- MFL nondestructive testing of oil pipeline and normalized least mean squared adaptive filter methods were presented. 介绍了输油管道漏磁检测方法及归一化最小均方自适应滤波方法。
- Multi-pump station and multi-heat station make the objective function and constrains of oil pipeline more complicated. 多泵站多热站决定了输油管道优化运行的目标函数和约束条件的复杂性。
- The Mixed Discrete variable Complex Programming method (MDCP) is used to solute the mathematical model of oil pipeline. 用MDCP法(混合离散变量组合形法)求解输油管道优化运行的数学模型,可以比较好地解决这一问题。
- The investigation is implemented about the corrosive states of oil pipeline inside Dongying oil transportation station. 对东营输油站站内输油管道的腐蚀现状进行了调查。
- API regulates that the yield strength of flatten specimen from pipe body is used to characterized the yield strength of oil pipeline body. 根据美国石油学会API标准规定,采用管体取样压平试样的屈服强度表征输油管体屈服强度。
- A two-stage adaptive noise cancellation algorithm for ultrasonic nondestructive testing of oil pipeline is studied in this paper. 摘要针对石油管道缺陷超声检测信号的噪声消除问题，研究了一种两级自适应噪声消除算法。
- There are varying noises in output signal obtained from magnetic flux leakage (MFL) nondestructive testing of oil pipeline. 摘要在采用漏磁法对输油管道进行无损检测过程中，信号会受到各种噪声的干扰。
- Alkaline waste is a kind of highly toxic and hazardous alkaline wastewater from oil refinery after alkali cleaning of oil products,which contains a great deal of sulfide,phenol and oil pollutants. 炼油碱渣是石油炼制过程中油品碱洗精制时产生的一种含有大量硫化物、酚类和石油类等污染物的碱性废液。
- The result shows that the optimal operation cost of oil pipeline after depressant injection is reduced by 8. 17% compared to ... 实例计算结果表明;加剂后管道的最佳运行费用比加剂前减少了8.;17%25;认为最佳运行方案可以用于指导原油管道的实际生产运行。
- Probe into the Chemical Cleaning of the Turbine's Lubricating Oil Pipeline 透平机润滑油管道化学清洗探讨
- To a bulit oil pipeline, an important problem of technical and economical analysis is which way is the best one of increasing trans portation capacity of oil pipeline . 对于一条已经建成的石油管道而言，采用哪一种增大输量方式来增大管线的输送能力最经济，这是一个重要的技术经济分析课题。
- In this paper, the girth welding was carried out after two kinds of oil pipeline steel with different content of V and Cr were heat treated by the different specification. 研究了具有不同合金元素钒和铬的两种石油用钢管 ,在对其经过不同热处理后进行环缝焊接。
- The price of oil has suddenly rocketed up. 石油价格突然飞涨。
- He wiped the revolver clean of his fingerprints. 他擦掉自己留在手枪上的指纹。
- There is no daily cleaning of the rooms. 学校不负责房间每天打扫。
- The country has abundant supplies of oil. 这个国家的石油供应充裕。
- Improper cleaning of flat wires. 盖板针不清洁不合适。
- DEBURRING AND CLEANING OF MACHINED PARTS. 给机加工件去毛刺并清洁。
- During the period of shut- down of a heated crude oil pipeline， the temperature drop of oil will make its viscosity rise and even result in the frozen pipeline， it will cause difficulty for restart of pipeline. 在加热原油管道停输过程中，油品温度下降，粘度上升，有时甚至出现冻管事故，常常给再启动带来困难。
