The experimental and theoretic study of pigging operation of mixed transportation pipeline has important signification for the design and management of mixed transportation pipeline.
混输管路清管操作实验和理论的研究对混输管线的设计及生产管理具有重要意义。
The purpose of the pipeline pigging is clear in pipe welding of mud, welding slags sundry, for pipeline caliper and normal operation of pipeline to provide security.
管线清管的目的是清除焊接时留在管道内的泥沙、焊渣等杂物，为管线测径和管线正常运行提供保障。
The pig is blocked frequently when pipeline pigging, which will influence the normal operation due to severe plugging sometimes.
现场清管作业时清管器经常被卡堵，严重时会影响正常生产。
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