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。
Meanwhile, the company will be responsible for contracting operation and management of the West-East natural gas transportation pipeline and the part of Shanshan to Lanzhou oil and product pipelines.
同时，负责西气东输管道全线运行操作和鄯善-兰州部分原油及成品油管道运行管理。
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