| 1. | Several different types of valves are in use. some are back pressure valves .
有几种不同的阀在使用中，有些是反向压力阀。 |
| 2. | If the pressure builds up excessively, the pressure valve opens to relieve the pressure .
如果油箱内压力过高，则压力阀开启，以降低压力。 |
| 3. | Pressure valve type b pn 16 , self - locking
B型pn 16自锁紧压力阀 |
| 4. | Application of shuttle back pressure valve in fluid transportat ion
梭式止回阀在流体输送中的应用 |
| 5. | Design and simulation of pneumatic proportional extra - high pressure valve
超高压气动比例减压阀的设计与仿真研究 |
| 6. | Rpv residual pressure valve
剩余压力控制阀 |
| 7. | Failure analysis and improvement of the packing seal of super high pressure valve
超高压阀门填料密封失效分析及其改进 |
| 8. | Gas cylinders - residual pressure valves - general requirements and type testing
储气瓶.剩余压力阀.一般要求和型式试验 |
| 9. | Gas cylinders - residual pressure valves - general requirements and type testing
储气瓶.剩余压力阀.一般要求和类型试验 |
| 10. | Middle pressure valve
中压阀门 |
