“Graetz number”的概念、定义、翻译、参考文献-科学参考

单词	Graetz number
释义	Graetz number [`grets ´nǝm·bǝr] ^{THERMODYNAMICS} A dimensionless number used in the study of streamline flow, equal to the mass flow rate of a fluid times its specific heat at constant pressure divided by the product of its thermal conductivity and a characteristic length. Also spelled Grätz number. Symbolized N_Gz .
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