ift effect 中文意思是什麼
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The experimental results of air heat transfer show that the relative fin height, relative fin width, relative fin pitch and density of 3 - d ift with staggered arrangement fins all have an effect on heat transfer and flow friction. especially, the effect of fin density is bigger
空氣換熱實驗的結果表明：肋叉排三維內肋管的相對肋高、相對肋寬、相對肋間距以及肋密度均對其對流換熱特性有影響，其中肋密度的影響較大。
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