在科学实验中,常遇到实验结果受多种因素的影响,这就要搞清楚每个因素对试验结果究竟影响如何,分清诸因素谁主谁次,弄清它们之间的关系,以求得最佳试验因素的选择数据.正交设计法又叫正交试验法,是解决多因素试验问题的一种数学方法.我们在泥浆试验工作中,利用这种方法通过室内试验,选择泥浆配方,用于现场实际生产,取得较好结果. In scientific experiments, it is often encountered that the results of experiments are affected by many factors. It is necessary to find out exactly how each factor affects the results of the experiment, to distinguish who is the main factor, and to clarify the relationship between them. The selection data for the best experimental factors. Orthogonal design method, also called orthogonal test method, is a mathematical method to solve the multi-factor test problem. In the mud test work, we use this method to select the mud formula through the indoor test. For actual production on site, to achieve better results.