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。
There is no water and most of the time pipe line and taps are stolen.
没有水，大多数时候管道或笼头被偷了。
Open the relevant valves on the oil pipe line and the water pipe line.
打开油管管路和水管管路上有关的阀门。
Close the relevant valves on the oil pipe line and the water pipe line.
关闭相关的油管管路和水管管路上的阀门。
Maximum continuous flow based on pipe line velocity of 20 ft. per second.
最大持续流量以管路流速每秒20英尺为计算基础。
The source of pipe line secondary stress check condition is the stability condition.
管道二次应力校核条件来源于结构的安定性条件。
The oil and gas pipe line through fault or landslide area is easy to be damaged by earthquake.
油气管道通过断层和滑坡地带，容易遭受地震破坏。
The X grace steel sheet is used as main material for SAW straight weld pipes for pipe line purpose.
X级管线钢板材是生产直缝埋弧焊管的主要原材料。
This air valve is automatic device, it can exhaust air in the pipe line to reduce energy loss of system.
本阀属于自动阀类，能自动排除管路内的气体，减少管路系统的能量损失。
Protective gas system: pipe line from the protective gas generation station to reducing annealing furnace.
保护气系统：从保护气体发生站至还原退火炉的管道。
It was the first time to install turbine-centrifugal compressor on the gas transmission pipe line in Chine.
燃气轮机离心压缩机组第一次安装在国内长输管道上。
For on-line calibration system of flowmeter, the working fluid flow is from the petroleum pipe line itself.
体积管工作时的液流，对于流量计在线检定系统，是来自输油管线本身。
In stress analysis of petrochemical pipe line, the secondary stress check is the one of basic strength check.
石化管道应力分析中，二次应力的校核是最基本的强度校核之一。
The effect of flux basicity on the microstructures and toughness of SAW deposited metals on pipe line was investigated.
研究了焊剂碱度对管线钢埋弧焊熔敷金属显微组织和韧性的影响。
In production of pipe line steel at Beixi Iron and steel Co. several defects are pre-vented by adopting optimum technology.
围绕本钢生产石油管线用钢，结合生产中出现的问题，摸索出一套适合本钢热轧厂的最佳工艺。
Abstract: as a kind of functioning material, the dual metal pipe has a number of advantages when used for pipe line purpose.
文摘：双金属管是一种功能材料，作为管道输送材料具有许多优点。
Note: the potable water expansion tank shall be installed in the cold water service pipe line on the supply side of the water heater.
注：饮用水膨胀罐应该安装在热水器的供水端的冷水维修管道上。
During pipe line laying or large beam support welding, it often meets crossover of two or multi different axis large diameter pipe piece.
在管道铺设或大型梁架焊接过程中，往往会遇到两个或多个不同轴线的大直径管件相交的情况。
In practise the tank lines for the connections T1 and T2 are joined together and laid downgrade towards the tank in one common pipe line.
实践操作中，把与T1和T2管线相接的油箱管线连在一起，然后敷设一条共用管线斜下至油箱。
The flared fitting is a connector in order the pipe line system, in which oil, water, gas and all kinds of corrosive materials are used as the medium.
扩口式管接头是以油、水、气和各种腐蚀性材料为介质的管路系统中的一种连接件。
For the formula which can be taken as the experience formula for analyzing the pressure losing of carbon black and air mixed flow inside the pipe line.
该公式可作为工程上分析炭黑与气体混合流在输送管道中压力损失的经验公式。
The results shows that the corrosion is an ideal austenite crystal boundary corrosion for pipe line steel. The accuracy of adopted determination method is high.
结果表明，此浸蚀剂是管线钢一种理想的奥氏体晶界浸蚀剂，所采用的测定方法的精确度较高。
Based on reliability theory, a basic maths model of calculating the reliability of drainage pipe line is recommended for factual need of drainage pipe line design.
根据排水管网设计的实际需要，以可靠性分析理论为依据，提出可以用于排水管网可靠性计算的基础数学模型。
The chemical composition, mechanic property, weldability and corrosion resistance of argon arc welding wire for low carbon steel pipe line are contrasted and analyzed.
对低碳钢管线用的氩弧焊丝的化学成分、机械性能、可焊性能、耐腐蚀性能进行对比分析，为合理选用焊丝提供了依据。
The testing result shows that sealing compound performance is good, costs are low, and is suitable for static seal of pipe line and valve under different temperature conditions.
测试结果表明，该密封胶性能优良，成本低廉，可适用于不同温度条件下的管线阀门等静密封。
Main points and design characteristics of main design parameter, pneumatic, strength and rotor dynamics calculations of centrifugal compressor natural gas pipe line are introduced.
介绍了天然气管线压缩机的主要设计参数、气动方案计算、强度计算、转子动力学计算的要点及机构设计的特点。
The longitudinal cracks along bond line and the transverse cracks which cut across the weld metal cross section inside weld metal were formed, while X65 pipe line steel was welding.
X65管线钢在焊接过程中，内侧焊缝金属出现横向和纵向沿熔合线方向的裂纹，横向裂纹贯穿焊缝金属横截面。
The longitudinal cracks along bond line and the transverse cracks which cut across the weld metal cross section inside weld metal were formed, while X65 pipe line steel was welding.
X65管线钢在焊接过程中，内侧焊缝金属出现横向和纵向沿熔合线方向的裂纹，横向裂纹贯穿焊缝金属横截面。
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