Emphasis is laid on the effect of tube distance and fin thickness on fin efficiency.

重点分析了圆管与扁管管间距、肋片厚度对肋效率的影响。

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Fixed the fin shape, adding the fin thickness is not an effective way to increase the efficiency.

在肋片外形不变的条件下，增加肋片的厚度来提高辐射器的散热性能并不是经济的途径；

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The fin pitch and fin thickness of the exchanger are the key parameters for heat transfer and pressure drop.

换热器的翅片间距和翅片厚度是影响换热器换热和压降特性的重要因素。

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