To select flow regulating valve, the flow capacity must be calculated first.
选择调节阀，首先要计算流通能力的大小。
Now we have a reservoir regulating the river flow.
现在我们有一个水库来调节河水的流量。
Pressure regulating valves in the control room for your remote control oxygen flow downstream;
压力调节阀用于您在主控室内远程控制下游氧气流量；
Pressure regulating valves in the control room for your remote control oxygen flow downstream;
压力调节阀用于您在主控室内远程控制下游氧气流量；
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