Quick closing valves, water hammer or supply pressure fluctuations can cause intermittent discharge.

迅速关闭阀门，水锤或供应压力波动可能导致间歇性排放。

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In the distance, there is the air compressor. All valves in this system are pneumatically operated with quick opening and closing.

远处为空气压缩机，系统内所有自动阀均为气动，开关迅速。

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