单因素实验设计是,要固定其他的一些因素,但这些因素水平也是未知的,那怎么固定这些因素�? 知乎 Template




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tomski单因素实验设计是,要固定其他的一些因素,但这些因素水平也是未知的,那怎么固定这些因素�? 知乎 coloring