查询词典 backflow

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

先进的一件式检测设备，用于在检测防回流阀时完全取代压力和压差表。

Our unique check modules put our Series 7 Backflow Preventers distinctly ahead of other residential containment devices.

我们独特的止回模块结构使得我们的系列7防回流阀住宅保护装置方面明显处于领先地位。

Backflow preventers should never be placed in pits unless absolutely necessary and then only when approved by local codes.

除非绝对必要并经过当地规程的批准，否则绝不应该将防回流阀放置在坑内。

For use with backflow preventers, isolation valve for gauges, isolation valves for small equipment lines.

TC 用于防回流阀，用于仪表的隔离阀，用于小型设备管道的隔离阀。

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

防回流阀应该安装在显眼的位置，以便能够立即注意到排放和其他故障警报。

Watts Dual Check Backflow Preventers can be specified in many different combinations of connection types, sizes, and union options.

美国瓦茨双止回防回流阀可以按照连接类型、通径和接头构成许多不同的组合。

KF43X-10 double seal self-defense against the current valve closure is my factory technicians on the latest research and development of products, mainly used in Qing reservoir overflow pipes, valves, there are usually a result of water-sealed to prevent sewage into the stench-money pool, As a result of heavy rains or sewer blockage caused by rain water pipe when the water level can be increased to prevent backflow of sewage-money pool, a good supply of health protection device.

KF43X-10双封自净式防逆水封阀是我厂技术人员研制开发的最新产品，主要应用于清蓄水池溢流管道上，平时因阀内有水封可阻止下水道臭气进入清水池，因大雨或下水道堵塞等造成雨污水管水位增高时可阻止污水倒流清水池，是良好的供水卫生保护装置。

The flood Protection - Shutdown valve, Junction Box, Flow Sensor, and Reduced Pressure Backflow Preventer shall be of the same manufacturer and covered by a single warranty policy.

堵漏-关闭阀，接线盒，流量感应器，和减压防回流阀应该采用同一个厂家的产品，以确保拥有唯一的质量保证。

Apart from the working limitations resulting from its structural property, the flat plate heat pipe carries out heat dissipation through the evaporation and condensation of the working fluid. Thus, if the working angle of the fluid is adverse to its backflow, the heat pipe will fail easily. Furthermore, not the orientations of all the heat sources are favorable to the functioning of the heat pipe. To compensate for this drawback, this research focuses primarily on the development of a composite structure which will reduce the effect of gravity on the working fluid. Generally speaking, the heat pipe is divided into three main categories: the groove type, sintered metal type and mesh screen type, as shown in Table 2. As far as capillary force is concerned, the sintered metal type and mesh screen type show better performance. As mentioned in R.

平板式热管除了因其结构特性而产生的工作极限之外，由于其作用乃是透过工作流体的蒸发及凝结进行散热，故若是其工作角度不利于液体之回流，便容易使热管失效，且并非所有之发热源都是位于有利于热管工作之位置，因此本研究之主要目的为设计一可减少重力对工作流体影响之复合式结构；一般而言，热管之结构大致可分为沟槽、烧结及网格三种(如表2所示)，其中烧结及网格结构有较佳之毛细力，在 R。

To protect the potable water supply from backflow from a non-potable source due to a drop in supply.

Function：防止由于高度降低而受到非饮用水源回流到饮用水供应系统中。

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。