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The Ecoserial device is a digital economiser with differential pressure gauge able to pilot until 204 valves by connecting itself to a pneumatic driving module RPB with only two threads.
节能控制仪是一数码并内置有压差器的脉冲阀控制仪，最多能控制到204个脉冲阀，而这也只要用两根管子与RPB先导阀盒组串连起来就可以达到。
The differential pressure fluctuation has a quite great influence upon the measure precision in measuring natural gas flow rate with the measuring device by use of standard orifice plate.
在采用标准孔板节流装置测量天然气流量时，盖压波动对测量精度影响甚大。
The gas jet purifying device makes use of differential static pressure to circulate purifying liquid, mixes liquid with gas through entraining and jetting, and finally realizes purifying of gas.
气体射流净化装置利用液体静压使净化液循环，并通过卷吸、射流使气液混合，实现净化。
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