| 1. | 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 |
| 2. | Amplification of uv ultrashort pulse laser in e - beam pumped krf amplifier 激光器进行超短脉冲的单束放大实验研究 |
| 3. | 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 |
| 4. | Beam pumping units 游梁式抽油机 |
| 5. | Important technological problems with stable operation of electron beam pumped krf excimer laser amplifier 激光放大器稳定运行的重要技术问题 |
| 6. | 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 |
| 7. | Optimum design for double - horse head beam pumping unit is a question of non - linear programming with inequality constraint condition and multi - objective function 双驴头抽油机优化设计是一个具有不等式约束多目标函数的非线性规划问题。 |
| 8. | 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。 |
| 9. | The operational characteristic of beam pumping unit is introduced , beam pumping unit is running , the cause changing three - phase asynchronous motor as a generator is also analyzed in detail 介绍了游梁式抽油机的工作特性,详细分析了抽油机运行时三相异步电机产生“倒发电”现象的原因。 |
| 10. | The main factors influencing power saving of the beam pumping unit with high slip motor are pumping speed of the unit , slip ratio of the motor and rotary inertia of rotating parts 指出影响使用高转差率电动机的游梁式抽油机节能的主要因素是抽油机的冲次、电动机转差率和旋转件的转动惯量。 |