查询词典 backflow

So when you need to be sure you have the most reliable residential containmentproducts, specify the Watts Series 7 backflow preventers.

所以，当用户需要确保使用的是最可靠的住宅防污染系统，则指定美国瓦茨系列7防回流阀。

The following Test Procedure is one of several that is recognized throughout the United States for verification of the functioning of Backflow preventers.

下列检测程序是美国公认的几种防回流阀功能检测程序之一。

The following Test Procedure is one of several that is recognized throughout the United States for verification of the functioning of Backflow preventers.

下列检测程序是美国通用的几种检测程序之一，用于检验防回流阀的功能。

The following Test Procedure is one of several that is recognized throughout the United States for verification of the functioning of backflow preventers.

下列检测程序是几种美国公认的防回流阀功能检测程序之一。

An advanced piece of test equipment designed to make pressure and differential gauges obsolete in the testing of backflow preventers.

先进的检测设备，专用于差压计无法清晰检测防回流阀的应用场合。

A strainer should be installed as shown, ahead of backflow preventers to prevent discs from unnecessary fouling.

应该如图所示在防回流阀前安装一个过滤器，防止阀瓣出现不必要的污垢。

When installing a drain line, use Series 909 air gaps on Model 909 backflow preventers.

在安装排泄管线时，在型号909防回流阀上采用系列909气隙。

Backflow preventers must be installed in high-visibility locations in order to allow for immediate notice of telltale discharge or other malfunction.

防回流阀必须安装在非常容易看到的位置，以便于能够立即发现警报性排放或其他故障。

Of course, the Series 7 Dual Check Backflow Preventers embody the quality engineering of Watts, a world leader in valve technology.

当然，系列7双止回防回流阀还是世界阀门技术领头羊的美国瓦茨质量工程的具体体现。

Also, mechanical backflow preventers and air gaps can be bypassed.

此外，机械式防回流阀和气隙可以作为旁路。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。