Before installing, flush pipe line to remove scale and debris.
在安装之前，冲洗管道，清除水垢和碎片。
This system adopts auto intelligent control , less maintenance personnel , lower labor intensity ; and adopts closed pipe connection to assure the site tidy , and applies to all scale enterprise .
全系统采用自动化智能控制，维护人员少，劳动强度低；采用封闭式管道连接，确保场地环境整洁，适用于各类规模的相关企业。
Full-scale fatigue test of drill pipe and borehole tests of drill pipes containing defects prove the reliability of assessment methods and software posed in this paper.
通过钻杆全尺寸疲劳试验和含有缺陷钻杆的井下试验，证明了本文提出的评价方法和软件是可靠的。
Some methods of optimization on pulsating heat pipe are by the designs of capillary wall microrelief, the scale design of existed vapor bubbles and the working fluid selection.
脉动热管的优化设计可以通过对壁面粗糙度的加工、形成的汽泡尺度的控制和工质的匹配选择等来实现。
The Udachny pipe. The scale of the work done by human hands is difficult to show in the photo or even video.
乌达奇内岩石筒。人工手工作业情景由于目标太小无法用照片或者视频呈现。
Flush dirt and scale from supply pipe.
从供应管道内冲刷污垢和水垢。
The author presents some considerations on pipe rack, structure and transfer line of large scale crude atmospheric and vacuum distillation unit.
分析了大型化的常减压装置平面布置的设计考虑，并具体讨论了装置管廊、框架、转油线等方面的设计看法。
The new produced vapor bubbles are related with the existed vapor bubbles, and the scale effects on the startup and operation of looped pulsating heat pipe are found.
已有汽泡的形状强烈影响脉动热管的启动和运行，小汽泡更利于新汽泡的产生。
Triangular steel pipe tower is fine type of small scale tower structure. Yet it tends to cause a torsional vibration by wind.
三角形钢管塔架是小型塔架的优选结构型式，但存在易产生风载扭振的缺点。
Especially, the operation of industrial scale piping for iron concentrate marked that China's pipe transportation of ore pulp had come into the practical application stage.
促进了高水平著述的问世，特别是工业化铁精矿管道的运营，标志着我国矿浆管道输送已进入实用化阶段。
The characteristics of pipe radiator heating scale-free roller furnace and quenching machine were mainly introduced.
重点介绍了辐射管加热无氧化辊底式炉和辊式淬火机的特点。
The influences of two factors including thickness of scale of cooling water-pipe and air clearance exerting on temperature field of stave is discussed based on calculation.
同时根据计算结果讨论了冷却水管水垢厚度、气隙层厚度对高炉铸钢冷却壁温度场的影响。
The enterprise mainly manufactures bolt cutters, pipe wrenches, captive hand tools most other pipeline products, including pipe clamp production scale ranks first in the country counterparts.
企业主要生产断线钳、管子钳、掳手极其它管道工具的系列产品，其中管子钳生产规模居全国同行之首位。
The heat transferring drum pipe, its heat insulativity and its heat-insulating Layer's thickness have not the distance scale.
对于圆筒输热管，其热绝缘性能与绝热层厚度之间的关系，远非象平壁那样呈线性关系。
Before installing, flush out pipe lines to remove scale and other foreign matter.
在安装之前，要冲洗管线，清除水垢和其他外来杂质。
In the welding engineering of large-scale pipe structures, the assembly precision and the branch pipe cutting curve of two intersecting pipes haven't been settled for a long time.
在大型管结构的焊接工程中，相交双管的装配精度及支管下料高度一直未得到很好的解决。
Failure cause of mechanical sealing of high temperature screwed pipe for GA123A pump is analyzed. It is showed that the causes of the sealing failure are scale deposit and carbon laydown in pipe.
对GA123A泵的高温波纹管式机械密封的失效原因进行了分析，证实热油泵的密封故障是由于波纹管内侧水垢和积碳引起。
PVC-U plastic pipe has the character of corrosion resistance, no-scale, light weight and long service life.
塑料管具有耐腐蚀、不结垢、质量轻、使用寿命长等特点。
In recent years, The large-scale open-ended steel pipe piles have been more and more widely applied in large scale deep water docks, Sea-Crossing Bridge Projects.
近年来，在大型深水港码头、跨海大桥工程中，大型开口钢管桩已得到越来越广泛的应用。
The experimental technology for determining JR curves by full-scale pipe specimens was introduced.
本文介绍了全尺寸管试样测定含裂纹管道结构J_R阻力曲线的测试技术。
The modular measurement system has been used for the large-scale forging pipe measurement reconstruction, and it achieved good results in terms of efficiency and accuracy.
将该组合式测量系统应用于大型锻造管道的测量重构，在效率和精度等各方面都取得了良好的效果。
Ventilation of starting rotation device ventilation pipe is from Axial flow of swirl hole inner surface takes air leads to vacuum cavity, model existence of scale effect.
起旋室通气井通风系由旋流洞内表面轴向水流“挟带”空气而致空腔内气体压强减小进入，模型存在缩尺效应。
The plastic-pipe-industry's definite scale made it the influence.
塑料管道已经形成了初具规模的行业力量。
Pipe or channel impeller jammed, scale deposited or valve not enough opened. 2, Voltage too loe. 3, impeller worn out.
水泵流量不足可能产生的原因：1、管道、泵流道叶轮部分阻塞，水垢沉积、阀门开度不足。2、电压偏低。3、叶轮磨损。
Pipe or channel impeller jammed, scale deposited or valve not enough opened. 2, Voltage too loe. 3, impeller worn out.
水泵流量不足可能产生的原因：1、管道、泵流道叶轮部分阻塞，水垢沉积、阀门开度不足。2、电压偏低。3、叶轮磨损。
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