The figure shows the required increase in pipe size in order to obtain proper separation of air from water.
2
介绍了上海市排水管道通沟污泥处理处置现状及存在的问题。
The current situation and existing problems of sewer sludge treatment and disposal in Shanghai were described.
3
介绍了小管径管道通球时卡球和解卡过程，还对水平管卡球原因进行了分析。
The paper made an introduction of ball through and process of bockage solution for small-diameter pipeline, and explanation of blockage in horizontal pipeline.
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