The problem how to discharge air in the double tube underside feed and underside return flow heating system is solved by improvement of system design.
并通过改进系统设计较好地解决了下供下回式热水供暖系统排放空气的问题。
In order to automatically control the supply and return air balance in quench air systems, the volume flow controller is used.
为实现环吹风系统供、回风平衡的自动控制，采用了体积流量控制器。
In order to automatically control the supply and return air balance in quench air systems, the volume flow controller is used.
为实现环吹风系统供、回风平衡的自动控制，采用了体积流量控制器。
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