Regulation valves are part of the implementation of devices to regulate direct contact with the media, regulatory medium flow.
调节阀是执行器的调节部分，直接与介质接触，调节介质的流量。
Regulation valves are part of the implementation of devices to regulate direct contact with the media, regulatory medium flow.
调节阀是执行器的调节部分，直接与介质接触，调节介质的流量。
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