| 1. | Linetype design of triple helix single screw pump based pro e
的三头单螺杆泵线型设计 |
| 2. | Oil recovery technique of rotary screw pump in directional - wells
定向井螺杆泵采油技术 |
| 3. | Testing methods for marine electric three - spindle screw pump
船用电动三螺杆泵试验方法 |
| 4. | Types and basic parameters of single screw pumps
单螺杆泵型式与基本参数 |
| 5. | Types and basic parameters of three screw pumps
三螺杆泵型式与基本参数 |
| 6. | Technical specification of single screw pumps
单螺杆泵技术条件 |
| 7. | Technical specifications of three screw pumps
三螺杆泵技术条件 |
| 8. | Marine electric two spindle screw pump
船用电动双螺杆泵 |
| 9. | Diagnosis of the production system from the load borne by the polished rod
螺杆泵井光杆受力法工况诊断技术 |
| 10. | Marine electric eccentric screw pump
船用电动单螺杆泵 |
