It can be concluded that the flattube has better performance of heat transfer.
说明扁管具有很好的强化传热效果。
2
Flattube in any cross section are oblong, the length of the shaft according to the tube pitch to determine the size of.
扁管在任何一个截面均为长圆形，其长短轴根据管心距的大小来确定。
3
The article gives a detailed introduction of the process of marking flattube needle for vas deferens puncture and a brief explanation of its application.