... plunger type oil pump 柱塞式油泵 radial plunger oil pump 旋转往复油泵 oil pump plunger 油泵柱塞 ...
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plunger-type hydraulic oil pump 柱塞式液压油泵
The shortcoming of top valve housing for standard type oil well pump plunger is wear and rupture of oil flow pore wall.
标准型抽油泵柱塞上阀罩的工作缺陷是出油孔壁磨损断裂。
One new type of internal combustion oil hydraulic power system was put forward, which integrated the technologies of internal combustion engine and oil plunger pump.
提出了一种新型内燃式油压动力系统，该系统集成了内燃机与柱塞式液压泵技术。
In accordance with this circumstance, a new type of oil well pump has been designed and developed - auto - compensation soft plunger pump.
针对这种情况，设计研制了一种新型井下抽油泵——自补偿式软柱塞泵。
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