在没有任何管道压力状态下开启和关闭阀门几次。
Stroke the valve open and closed several times, with no line pressure.
空气压力使水通过管道。
在管道中的压力应保持规定的时间。
The pressure is maintained on the line for a specified time.
系统额定压力应该是管件、管道或连接部位的压力额定值的最低值。
The system rated pressure shall be the lowest of the fitting, tube or joint.
所需要的固化时间与温度、管道直径和应用压力有关。
Required cure time depends on temperature, pipe diameter, and pressure application.
额定内部压力是所连接的管道额定内部压力。
故它适用于各种通径和压力的管道连接。
Therefore, it applies to a variety of stress path and the pipe connection.
水利工程中压力管道是一种应用十分广泛的结构形式。
Pressure pipeline is a widely used construction form in water project.
记住，压力管道可以破解。
提出了一种压力管道连接件的新结构。
This paper gives a new structure of pressure pipeline connections.
最后是管道运行过程中的压力。
若没有不同的压力给管道的话，那么就不可能有流动的水通过管道。
No flow of water occurs through the pipe unless there is a difference in pressure.
公司已通过ISO 9001： 2000国际质量体系认证并取得压力管道生产许可证。
The company is ISO9001:2000 international quality system certification and a pressure pipe production license.
腐蚀失效是压力管道失效的主要模式之一。
Corrosion is the primary failure mode of pressurized pipelines.
对长期暴露在外并受大气腐蚀的压力管道进行了腐蚀剩余寿命研究。
The residual life for long-dated service pipe corroded in atmosphere is studied.
研制的智能电子压力开关已在输油管道上应用。
The smart electron pressure switch has been applied in pipeline.
在武器压力测试中，传压管道的存在常常使得压力信号产生严重失真。
The existence of transmission tube usually causes pressure signal distortion in the weapon pressure measurement.
空气压力使水通过管道。
空气压力使水通过管道。
切记工人须按正规操作，经常检查压力表、报警器、安全阀管道畅通。
Workers shall operate normally and check pressure gauges, alarm and safety valve pipe flow regular.
管道发生水击时的水击压力波对管道的危害非常严重。
Pressure wave of water hammer produces serious hazard for pipeline.
熟悉压力管道设计和制造；
Familiar with pressure vessel design and manufacture knowledge;
熟悉压力管道设计和制造；
Familiar with pressure vessel design and manufacture knowledge;
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