...二次回归正交组合设计；对乙酰氨基酚糖浆；溶解度；防结晶 [gap=1243]Key words：quadratic regression orthogonal combination test；Paracetamol Syrup；solubility；anti—crystallization ..
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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。
T. ma was studied on the base of other studies, the experiment adopted with the combination design of orthogonal and quadratic regression equation.
方法采用四因素二次回归正交旋转组合设计和生物统计方法。
Methods: Four factors quadratic regression rotation combination design and agricultural biological statistics were applicated.
以香石竹叶片为外植体，利用二次回归正交设计对其再生体系建立中的关键因素6-BA和NAA的浓度及其组合进行定量优化。
Optimal concentrations of 6-BA and NAA and their combinations were tested with quadratic regressive orthogonal design for their effect on shoot regeneration of Dianthus caryophyllus L.
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