| 1. | All that is required is a valve . 全部所需的就只是一个活门。 |
| 2. | Dry pipe and deluge valves for fire - protection service 防火用干式管和喷洒活门 |
| 3. | 5963446 - 501 brake valve and bleed test set 5963446 - 501型刹车活门测试仪 |
| 4. | Key lock power switch make hot - swappable 崭新活门及匙扣电源开关设计 |
| 5. | Fittings and valves , check valves , gate valves , angle valves , etc 配件与活门、止回阀、闸门、角闸等 |
| 6. | Butterfly shape petal fracture analysis of aup leading gas valve on boeing 777 plane 引气活门蝶形瓣片断裂分析 |
| 7. | Constant pressure expansion valve 恒压膨胀活门 |
| 8. | Standard for safety for dry pipe and deluge valves for fire - protection service 消防设施用干管和喷洒活门的安全标准 |
| 9. | Modeling and simulation of special structure check valve charge vibration 某特殊结构增压单向活门充气振动的建模与仿真 |
| 10. | Control valve flow performance 调节活门流 |