• 1. double check valve: 双止回阀 | 双单向阀 | 双向止回阀 | 双向阀
• 2. double check-valve assembly: 双逆止阀装置
• 3. double check valve plug: 二级单向阀螺塞

更多释义

• 1.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。
  dict.yoduao.com
• 2.DOUBLE CHECK VALVE ASSEMBLY For Low Hazard Cross-connections and continuous pressure applications.
  双止回阀总成用于低危险交叉连接和持续压力应用场合。
  dict.yoduao.com
• 3.The TK-DL can test pressure vacuum breakers, reduced pressure backflow preventers or double check valve assemblies.
  TK - DL可以检测压力真空断路阀，减压防回流阀或双止回阀总成。
  dict.yoduao.com

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