T. ma was studied on the base of other studies, the experiment adopted with the combination design of orthogonal and quadraticregressionequation.
采用三元二次回归正交组合设计，研究了氮、磷、钾三因素五个水平对湖北麦冬产量的影响。
2
Finally, a quadraticregressionequation is used to represent LTV system, and the GA and AIC are introduced to determine the structure of the parameter sub-model.
然后利用遗传算法和AIC确定参数子模型的结构，以获得最终用于表示LTV系统的二次回归方程。
3
According to the features of shaft kiln burning, a mathematical model is established and a quadraticregressionequation for calculation of proper burning range of road cement clinker is presented.