double check valve

基本解释

• 双止回阀；双单向阀

英汉例句

双语例句

• 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。
• Pre-installation required to double-check valve, and clear the valve internal transport, storage process of the damage caused.
  安装前需仔细检查阀门，并清除阀门内在运输、存放过程中造成的损害。
• Double Check Valve Assembly shall be installed at referenced cross-connections to prevent the backflow of polluted water into the potable water supply.
  在相关的交叉连接处应该安装一个双止回阀总成，以防止受到污染的水回流到饮用水系统中。

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词组短语

短语

• double -check valve non-return valve 双止回阀
• double check -valve assembly 双逆止阀装置
• Double Check Valve Backflow -Prevention Assembly 双止回阀防回流组件

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专业释义

经济学

• 双止回阀