动态流量平衡阀的流量在出厂前根基系统流量进行定制，现场不需要进行任何调试。
The flow rate of dynamic flow balancing valves has been set before leaving the factory, therefore adjustment is not needed in the field.
动态流量平衡阀的流量在出厂前根基系统流量进行定制，现场不需要进行任何调试。
The flow rate of dynamic flow balancing valves has been set before leaving the factory, therefore adjustment is not needed in the field.
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