By making a primary orthogonal regression test, the major factor and best parameter combination were found out, which supply theoretical basis for further research on awn removed principle and awner.
通过一次回归正交试验找出了影响除芒效果的主次因素和最佳参数组合，为进一步研究除芒机理与机具提供了依据。
T. ma was studied on the base of other studies, the experiment adopted with the combination design of orthogonal and quadratic regression equation.
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。
In this paper, the experimental design was regression of 3 factors quadric orthogonal revolving combination.
采用三因素二次正交旋转组合回归设计试验，对甘薯氮、磷、钾施肥量进行了研究。
According to the partial-control theory and the traits of design of quadratic rotation-regression-orthogonal combination, the central point treatment is put forward in this paper.
本文根据二次正交旋转组合设计的特点和局部控制理论，提出了中心点数据处理法。
According to the partial-control theory and the traits of design of quadratic rotation-regression-orthogonal combination, the central point treatment is put forward in this paper.
本文根据二次正交旋转组合设计的特点和局部控制理论，提出了中心点数据处理法。
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