| 1. | Directional control combination valve with 2 - speed for ships
船用双速换向组合阀 |
| 2. | Two speed retrofit of the motor of circulating water pumps
循环水泵电动机的双速改造 |
| 3. | Test study of two - speed contra - rotating auxiliary fan
双速对旋式局部通风机的试验研究 |
| 4. | Design on 750kw gear increaser of dual - direction and two - shift
双向双速齿轮增速箱设计 |
| 5. | Protection class : ip44 cooling method : ic0141
转速：单速双速或多速 |
| 6. | Flameproof mining type double speed three - phase induction motors
矿用隔爆型双速三相异步电动机 |
| 7. | Dual speed 35 minutes timer with chime
双速35分钟计时器附有响铃 |
| 8. | Two speed double reduction final drive
双级双速主减速器 |
| 9. | Two speed planetary final drive
行星齿轮式双速主减速器 |
| 10. | New bf 2 speed gearbox
2007 new bf主轴双速减速箱 |
