This paper states several problems in water pump risingpipe design and puts forward precautions from the aspects of circuit arrangement and pipe material selection.
论述了水泵出水管路设计的几个问题，并在线路布置、管材选择等方面提出了注意事项。
2
He said pressure was rising slowly inside the well, which suggests there is no damage or breaches in the well pipe.
他说，井内压力正在缓慢升高，这显示油井管道没有受损也没有裂缝。
3
Today, raw material billets, steel prices rose once again pull, cost-push pipe prices still rising demand, the prices of short-term business planning possible again.