double check valve meaning in English
双止回阀
Examples
- Double check valve backflow - prevention assembly
双止回阀防回流组件 - 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。 - 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。 - The double check valve assembly shall be a watts regulator company series 774x
这种双止回阀总成应该是美国瓦茨调节阀公司系列774x 。 - Watts series 709 double check valve may be installed in either a vertical or horizontal position
美国瓦茨系列709双止回阀可以安装在垂直或水平位置上。