Breakpoint testing is still in the stage of application and dissemination. It has been being on trial for long distance transmission pipeline without SCADA system.
断电法测试在国内还处于推广和应用阶段，尤其是在无s CADA系统的长输管道上，其应用还处于尝试阶段。
It is proved by examination that the economical and practical equipment and technics are suitable for the long distance transmission pipeline, and it has good foreground of spreading and appling.
试验证实，这是一种与长输管道自动焊配套的经济实用型成套设备，具有较好的推广应用前景。
According to the model, a corresponding software has been programmed which provides a decision-making basic for optimizing transmission of long distance heated crude oil pipeline.
根据所建模型编制了相应软件，为加热原油的长距离优化输送提供了决策依据。
Selection program and principle of pipes for long distance oil and gas transmission pipeline is introduced.
介绍了长输油气管道用钢管的选用程序和原则。
For the safety of gas transmission in long distance pipeline, the method regarding how to get the proper value of pressure drop rate for the fast block valve on pipeline is studied.
根据输气管道安全的需要，对干线快速截断阀压降速率设定值的确定方法进行了研究。
The scheme determination of long distance gas transmission pipeline is analyzed, and the optimized design calculation of long distance gas transmission pipeline is discussed.
分析了长距离输气管道方案的确定，探讨了长输管道的优化设计计算。
The scheme determination of long distance gas transmission pipeline is analyzed, and the optimized design calculation of long distance gas transmission pipeline is discussed.
分析了长距离输气管道方案的确定，探讨了长输管道的优化设计计算。
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