Backflow in front of loading.
加载前回流
Four required per backflow preventer.
每个防回流阀需要四个。
Media type check valve for preventing backflow.
止回阀类用于阻止介质倒流。
a backflow of urine from the bladder into the ureter.
尿液从膀胱回流到输尿管。
The dual check backflow preventer shall meet ASSE 1024.
这种双止回防回流阀应该满足美国卫生工程师协会1024标准。
However, backflow may now be creating other side effects.
不过, 眼下回流可能正在引发其它一些负面影响。
They prevent steam backflow from the header to the boiler.
这种阀门能够防止蒸汽从集气箱倒流到锅炉里。
Numerical Analysis of Backflow Distance of Smoke in Mine Fire
矿井火灾烟流滚退距离的数值模拟
A check valve may be required ahead of the backflow preventer.
此时在防回流阀前面可能需要安装一个止回阀。
Certified testers of backflow assemblies must conduct this test.
这种测试必须由有资格证书得防回流阀总成检验员进行。
This would create an air gap to eliminate any possible backflow.
为了防止可能的回流，将需要安装一个气隙。
For use with backflow preventer test cocks to protect from damage.
用于防回流阀测试旋塞，防止受到破坏。
Since then we installed a backflow valve so it was less this time.
自从那时起, 我们安装了一个逆流阀, 所以这次少了很多。
Condensate Gas Reservoir Fracturing Backflow Parameter Optimization
凝析气藏压裂返排参数优化
The backflow preventer must be installed upstream of the regulator.
防倒流装置必须安装在调节阀得上游位置。
The system should be flushed before the backflow valve is installed.
在安装回流阀之前系统应该进行冲刷。
Backflow Control in Bin and Feeder Ball Mill Coal Pulverizing Systems
钢球磨煤机中间储仓式制粉系统倒风控制研究
Installing a backflow preventer in a pit or vault is not recommended.
不建议在坑内或拱顶内安装防回流阀。
Research on backflow method and backflow device of fan used in subway
地铁风机的反风方法及反风装置的研制
Deck mounted bath shower transfer valves with integral backflow protection
装盖板的带整体回流保护的浴室淋浴转换阀
Slowly open upstream shutoff and allow the backflow preventer to fill slowly.
慢慢开启上游关闭阀，让防回流阀慢慢注水。
From this causes two backflow agitation efficiency not high substantial clause.
由此引起二次回流搅动效率不高得重要原因。
Note Local codes typically require the use of a backflow preventer in the system.
注当地规程一般都要求在系统上使用防倒流装置。
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