To meet the needs of transporting more oil in Ansai-Yan'an oil pipeline, the centrifugal pump sets used in the pumping stations along the line need to be modified. 针对安延线输送能力不能满足实际生产需要的状况,提出了对安延线各站输油泵进行技术改造的方案。
The first thing that strikes you about students at the University of Waterloo is how quickly they walk: arms pumping, legs churning, they burn across the park-like campus as if surging towards some invisible finish line. 滑铁卢大学的学生最令人惊异的第一印象,就是他们竞走般的步行速度:双臂摆动配合著交替的步伐,如野火蔓延穿梭于公园般美丽的校园,彷佛向著终点冲线。
Appropriate machining, rolling Rolling make quantitative, and ford All or variant processing, pumping rod or line stretching. 适切削加工,做定量压延滚牙性,用于卯合或变型加工,抽伸棒或线。
Zaohe Pumping Station, locating at the north Zaohe County, Suqian City of Jiangsu Province, is one of the sixth cascade pumping stations in South-to-North Water Transfer East Line Project, Phase I. 皂河泵站是南水北调东线第一期工程的第六梯级泵站之一,位于江苏省宿迁市皂河镇北。
The plug issues of concrete pumping line 混凝土输送管在泵送时堵塞问题的探讨
Abstract As influence of beaming effect, the entry conditions of the next tube in vacuum pumping line is different, from the tube which connects with a big vessel, so the transmission probability which was worked out by the experience approximate expression will lead to more errors. 由于集束效应的影响,真空管路中后续管道与入口连接大容积的管道的入口条件不相同,因而其传输几率的计算用现有的近似计算公式将会导致较大的误差。
The seepage cause in the adit and shaft of the third-stage pumping station of the general main line in YRDP is analyzed. 文中针对万家寨引黄工程输水隧洞及泵站平洞竖井存在的渗漏原因进行分析研究。
Hydraulic model test researches on pumping well of a# pumping station on southern line to phase ⅱ Shanghai wastewater treatment engineering project 上海污水治理二期工程南线A~泵站前池水力模型试验研究
Since a mine pumping system can generally be simplified into a complicated pipe-line system in series, the transient process is simulated by a method of characteristic line. 根据矿井排水系统一般可以简化为串联复杂管路系统的特点,采用特征线法模拟其断电停泵的瞬变过程。
The Itinerant Monitor System of Pumping Oil Well Based on Power Line Carrier 基于电力线载波的抽油机井巡回监测系统
The latest development of electrode, barrier rib, MgO film and mass production technology of MgO deposition, gas pumping, gas filling and packaging in line system of PDP processing were reviewed in this paper. 本文综述了PDP电极、障壁、MgO保护膜制造工艺和MgO保护膜沉积、封接、充气、排气和封口一体化系统规模生产技术的最新进展。
A nonlinear programming model is established for determining the opti-mal speed of a pumping station in line with the theory of system analysis. 根据系统分析理论,为确定抽水站最佳转速提出了一种非线性规划模型。
This paper discusses the influence of beaming effect and worked out the accurate expression of the transmission probability of the next tube in vacuum pumping line. 本文计论了集束效应对后续管道的影响结果,以现有的计算公式为基础,导出了后续管道传输几率的较为精确的近似计算公式。
A 0.6m long differential pumping system used in the spectral radiation standard and metered beam line is described. 介绍了光谱辐射标准及计量测试光束线实验站上使用的,在0.6m段达到四个量级的真空差分而设计的差分系统。
With the development of various pumping schemes a series of line focus systems have been successfully implemented. 伴随着抽运方式的发展,先后出现了一系列对应的线聚焦器件,取得了不错的线聚焦效果。
Discussing the equipment of the water-guard bearing of the third pumping station of JiangDu of the pumping station of JiangDu reconstructive projection of the east line of the south-to-north water diversion projection 南水北调东线江都站改造工程江都三站主水泵水导轴承装置形式探讨
Transmission Probability of the Next Tube in Vacuum Pumping Line 真空管路中后续管道的传输几率
The long-distance control of beam pumping unit motor starts and stops has been realized by the using of the low voltage power line communication and two way automatic communication. 油田开发的中后期一般会应用间歇采油技术,本文通过低压电力线载波通信和电力线工频通信,实现了对抽油机电机的远程启、停控制。
They tried to form in the pumping line from the left and let the lines on the screen to speak, to achieve its own expression and expression. 他们试图把线条从形中抽离开来,让线条在画面中说话,实现其自身的表达方式与表达能力。