接着利用统计学方法，建立影响因素与产值之间的直线回归模型，并对回归模型拟合程度进行分析；

Then using statistics method, establishing the regression model of straight line and analyzing join level for regression model;

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对实验数据进行回归拟合，建立了磷酸料浆过滤速度的经验数学模型。

Regressing and fitting the experimental datum, the aim is to establish an empirical mathematical model for filtration rate of phosphoric acid slurry.

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线性回归模型的拟合效果总体较差。

Regression model fitting results are not so satisfying.

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