无论改变泵出口管线结构还是改变泵吸入口管线结构，都会对单螺杆泵的特性产生一定程度的影响。
Whether to change the pump outlet pipe structure or to change the pump intake pipe structure, and will feature a single-screw pump have a certain extent.
简要叙述了运用安全系统工程解决油库罐区因地基下沉而造成的储罐出入口管线存在的应力问题 ，及金属软管连接在石油一厂储罐中的应用。
This paper describes the application of the safety systems engineering method to solve the pipeline stress of the tanks' exit and entrance and the application of metal hose on the tank of the No.
控制合适的操作条件，在大油气管线进分馏塔入口处增加蒸汽环管，可以有效防止结焦。
Coking at the inlet of large gas line to fractionator has been effectively prevented by setting up steam circle pipes under appropriate operation conditions.
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