Journal of Liaoning Petrochemical University
Analysis of the Movement Law of the Valve Ball in the Oil Well Pump Based on the Ellipse Rate Drive
Zhigang Duan, Zhi Wang, Minglai Chu, Xiantao Liao, Zhimei Si, Liao Wang
Journal of Liaoning Petrochemical University . 2021, (5): 50 -54 .  DOI: 10.3969/j.issn.1672-6952.2021.05.009

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