Each heat exchange tube has a plurality of flow channels defining discrete flow paths extending longitudinally in parallel relationship from its inlet end to its outlet end.
每个热交换管具有限定出分立的流动通路的多个流动通道，这些通路以平行关系沿纵向从其入口端延伸到其出口端。
Each heat exchange tube has a plurality of flow channels defining discrete flow paths extending longitudinally in parallel relationship from its inlet end to its outlet end.
每个热交换管具有限定出分立的流动通路的多个流动通道，这些通路以平行关系沿纵向从其入口端延伸到其出口端。
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