| 1. | My sister , veronica , and i did this double act 我妹妹薇若妮卡和我从事二人组表演 |
| 2. | Double acting cylinders for agriculture . specifications 农用双作用油缸.技术条件 |
| 3. | My sister veronica and i had this double act 我妹妹维罗尼卡和我一起演出 |
| 4. | Double acting high - pressure vane pump for ship 船用高压双作用叶片泵 |
| 5. | Double acting mid - pressure vane pump for ship 船用中压双作用叶片泵 |
| 6. | Building site equipment . double acting adjustable metallic stabilizers of class 1 施工现场设备. 1类双动可调金属支脚 |
| 7. | Double acting positioner 双作用定位器 |
| 8. | Double acting wing 有阀翼板 |
| 9. | Pneumatic welding cylinder , double acting without cushion , double piston , connection dimensions 第1部分:气动焊接汽缸无缓冲双作用双活塞连接尺 |
| 10. | Double acting hydraulic rescue tools for fire and rescue service use - safety and performance requirements 消防和救生用双动液压救生工具.安全和性能要求 |