| 1. | A new kind of long stroke wheel style pumping unit
一种长冲程转轮式抽油机 |
| 2. | The design of chain type long stroke pumping unit
链式长冲程抽油机设计 |
| 3. | A kind of long - strike oil pumping machine using planet - gear
一种行星齿轮长冲程抽油机的换向机构研究 |
| 4. | The research on lower super - long stroke pumping unit with a cylinder - chain
圆柱链低矮式超长冲程抽油机的研究 |
| 5. | Parameter analysis of long stroke pumping units of accurate counterbalance and dual - belt of b - 14 - type
14型全平衡双带长冲程抽油机参数分析 |
| 6. | Optimum design of a long stroke variable torque pumping unit and simulation of its dynamic behaviors
扇形长冲程抽油机的优化设计与动力仿真 |
| 7. | The machine program consists of progressive headers , bolt making units , short and long stroke part formers
其机械范围包括多工位成形机，螺栓成套机，短、长冲程零件成形机。 |
| 8. | The combination of high gear ratio and long stroke can drain an entire air system unless the air supply system is specially designed to accommodate this type of actuator
除非气源供应系统是经过特殊配置，以满足这种类型执行机构的要求，或者高齿轮传速比和长冲程的组合可能会耗尽整个气源系统。 |
