Based on the flow mechanism and performance of gas liquid two phase plug flow in oil gas gathering line, a slug unit are divided into both gas slug region with liquid film and liquid slug region.

针对油气集输管线中气液两相团状流的流动机理和特点，将每一段塞单元划分为带液层的气塞区和液塞区两个区域。

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The living room is the natural gas gathering place should be stable, should not be the living room planning in line, so that people walking too frequently.

客厅是聚集旺气的地方，应要求稳定，不应将客厅规划在动线内，使人走动过于频繁。

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The hydraulic calculation of vent line is an interesting but difficult problem in natural gas gathering engineering design.

放空管路水力计算是天然气集输工程设计中一个令人极感兴趣、却又常常使人困惑的问题。

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