In this paper, increase with Reynolds number, we first find that 3-d IFT with staggered arrangement fins and smooth tube's heat transfer characteristic curve will have a point of intersection.
本文研究还首次发现在层流区，随着雷诺数的增加，肋叉排三维内肋管和光管的换热特性曲线会出现一个交点即换热有效折点。
Through the experimental data processing, the curve of the transfer characteristic and the relationship equation are gained in this paper.
由测量数据拟合出了球形探头在工频电场和冲击电场作用下的变换特性曲线，得到了探头变换特性的关系式。
Through the experimental data processing, the curve of the transfer characteristic and the relationship equation are gained in this paper.
由测量数据拟合出了球形探头在工频电场和冲击电场作用下的变换特性曲线，得到了探头变换特性的关系式。
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