Secondly, on basis of exploring experiment, do the normalexperiment to select the chemical composition.
第二步是在探索性实验基础上做正交实验，优选配方。
2
There were 64 normalexperiment troops in the experimentation. A lot of datas about the rolling force under the different mechanical parameters were gained.
试验按照工艺参数全排列进行，共有64组试验，通过试验得到一系列在不同工艺参数下的轧制压力数据。
3
As an beneficial and essential supplement to the normalexperiment, virtual experiment not only saved a lot of education fee, but also extend the experiment on time and space effectively.