结果表明，封闭式纵向翅片管的散热量、金属热强度以及自然对流换热系数都要高于开放式翅片管。
As a result, heat dissipating capacity, metal thermal intensity and free convection heat transfer coefficient of the longitudinal closed finned tube are higher than those of the open finned tube.
自然对流可能影响前面所述的弱强制对流热传递系数。
Natural convection can affect the heat transfer coefficient in the presence of weak forced convection …
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