Establishment of dynamic model for plunger gas lift;
柱塞气举动态模型的建立
Development and application of auto - compensation soft plunger pump;
自补偿式软柱塞泵的研制与应用
Analyses on motion law of piston of constant flow pump for polymer injection;
注聚合物用恒流量往复泵柱塞运动规律分析
Application of ceramic coating on the surface of the piston;
陶瓷涂层在柱塞上的应用