| 1. | Use check valves to prevent reverse flow in to the cylinder
使用止回阀，防止回流入钢瓶。 |
| 2. | Purpose : to test check valve no . 2 for tightness against reverse flow
目的：检测止回阀2号对于回流的紧密度。 |
| 3. | Purpose : to test check valve no . 2 for tightness against reverse flow
目的：检测止回阀2号对于回流是否紧密密封。 |
| 4. | Plug removal by reverse flow
反排解堵 |
| 5. | Spring loaded for fast closure , eliminating reverse flow slam and water hammer
负载弹簧用于快速关闭，消除逆流冲击和水锤。 |
| 6. | Determination of berberine hydrochloride with reverse flow injection chemiluminescence
反相流动注射化学发光法测定盐酸小檗碱 |
| 7. | Reversed flow - injection chemiluminescence system for the determination of berberine hydrochloride
反相流动注射化学发光法测定盐酸小檗碱 |
| 8. | Requirements : valve must be tight against reverse flow under all pressure differentials
要求：在所有压差下，阀门对于回流必须密封紧密。 |
| 9. | Comparison of two types of water distribution mode for natural ventilation reverse flow cooling towers
自然通风逆流式冷却塔配水型式比较 |
| 10. | Determination of the lowest autothermal concentration for methanol synthesis under reversed flow operation
流向变换合成甲醇最低自热浓度的确定 |
