传统的选冶试验方法(一次一因素法)是每批试验只变动一个因素,而将其它因素暂时固定在某一水平上,待找到第一个因素的最优水平后,便固定下来,再依次考查其它因素。该法的主要缺点是:1) 不能揭示因素间的交互作用,因而试验可靠性较差;2) 试验的批数和总的试验点数均较部分析因试验法多;3) 试验结果的分析是凭肉眼 The traditional method of selecting and smelting test (one-factor-one method) is to change only one factor for each batch of experiments, and to temporarily fix other factors to a certain level. After finding the optimal level of the first factor, In order to examine other factors. The main disadvantages of this method are: 1) it can not reveal the interaction between the factors, and therefore the reliability of the test is poor; 2) the number of tests and the total number of test points are more than that of the partial factorial test; 3) The analysis of the test results With the naked eye