...向翅片管（Longitudinal Finned Tube）等、螺旋锯齿状翅片管（Helical Serrated Finned Tubes）、内翅片管（inner finned tube） 2) 根据翅片管的翅片材质是否与管体材质相同可分为单金属翅片管和双金属复合翅片管。
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Regard the inner finned tube as the heat exchange units, its heat transfer property was studies experimentally.
以内翅片管作为换热器传热元件，通过实验方法对其传热性能进行研究。
Also heat transfer property of the interpolation tubes, which have the similar characteristics with the inner finned tube was studies and compared on the condition of sa…
并对与内翅片管结构和特点相近的内插管，在外型尺寸相同、实验条件相同的前提下，进行了传热性能实验研究和比较。
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