| 1. | Leave the check assembly parallel to the valve body
使得止回阀总成与阀体平行。 |
| 2. | Lift retainer and check assembly from valve body
从阀体内取出护圈和止回阀总成。 |
| 3. | Cock assembly for domestic gas appliance
家用燃气器具旋塞阀总成 |
| 4. | Scavenging air plate valve complement
扫气片状阀总成 |
| 5. | Pressure limiting valve assembly
压强限制阀总成 |
| 6. | A double check valve assembly shall be installed at each noted location
双止回阀总成应该安装在每个指定的位置。 |
| 7. | Certified testers of backflow assemblies must conduct this test
这种测试必须由有资格证书的防回流阀总成检验员进行。 |
| 8. | There shall be no brass or bronze parts used within the check valve assembly
在止回阀总成内不应该采用黄铜或青铜部件。 |
| 9. | Unit valve assembly
单元保护阀总成 |
| 10. | Series 719 double check valve assembly shall be installed at each noted location
系列719双止回阀总成应该安装在每个标注的位置上。 |
