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Keyword [hydraulic feedback pump]
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1. Tahe Oilfield Heavy Oil Hydraulic Feedback Pump Deep Optimization Design Research
2. No Tubing Hydraulic Feedback Hollow Sucker Rod Pump Design And Research
3. Analysis On Factors Affecting Repair-free Period Of Rod Pumping System In Tahe Oilfield And Research On The Correspongding Countermeasures
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