| 1. | Performance analysis of the new type of swing - rod pumping unit
新型摆杆式游梁抽油机的性能分析 |
| 2. | Design and simulation analysis of reconfigurable beam pumping unit
可重构游梁式抽油机的设计和仿真分析 |
| 3. | Study and application of packing feeder for pumping unit on oil well
游梁式抽油机井口盘根旋进器的研制与应用 |
| 4. | Reforming beam pumping unit into dual variable - diameter wheel pumping unit
由游梁式抽油机改造成的双变径轮式抽油机 |
| 5. | Beam - balanced pumping unit
游梁平衡抽油机 |
| 6. | Study and simulation about pumping unit with double circulation and each - other balance
双循环互平衡游梁式抽油机的设计及仿真 |
| 7. | Beam pumping units
游梁式抽油机 |
| 8. | Beam - pumping unit
游梁式抽油机 |
| 9. | Analysis and research on the projection declination of horsehead ' s pendulous point of beam pumping unit
游梁式抽油机驴头悬点投影偏差的分析研究 |
| 10. | Adopting high slip motor and increasing the rotary inertia of the rotating parts is an effective approach to achieving good power - saving effect of beam pumping units
采用高转差率电动机，并增加旋转件的转动惯量，是综合提高游梁式抽油机节能效果的有效途径。 |
