Grounding on the working characteristics of PCP lifting system, the pump can be considered as a functional nodal, and the way of technological design is brought forward.
根据螺杆泵举升系统的工作特点，以螺杆泵为函数节点，提出了工艺设计方法。
Grounding on the working characteristics of PCP lifting system, the pump can be considered as a functional nodal, and the way of technological design is brought forward.
根据螺杆泵举升系统的工作特点，以螺杆泵为函数节点，提出了工艺设计方法。
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