根据四因素三水平正交表设计试验。
The experiment was designed according to four factors and three levels orthogonal table.
方法：采用四因素三水平的正交试验法，筛选静脉穿刺涂剂的配方。
Method: The orthogonal test of four factors at three different levels were used.
利用硝酸银、ATP钠盐、NAA、KT进行了四因素三水平正交试验，材料为彩色甜椒品种7160的花药。
Silver nitrate, ATPNa2·3H2O, NAA and KT have been tested in orthogonal test. Material was 7160, a variety of colored bell pepper.
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