A differential equation is simply an equation that contains a derivate.

微分方程简单说是含有导数的方程。

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Sauce condiment and its derivate brought into the formation of sauce culture.

酱文化是指由酱类调味品及其衍生物所生成的文化。

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Sauce condiment and its derivate brought into the formation of sauce culture.

酱文化是指由酱类调味品及其衍生物所生成的文化。

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