As economic behavior being more and more complicated, some economic phenomena cannot reflect the objective reality well till they are portrayed with the dynamic non-linear model.
随着经济行为越来越复杂,只有用动态的非线性模型刻画某些经济现象,才能较好地反映客观现实。
2
When atoms and molecules are radiated by ultra intense laser pulse, a series of new non-linearphenomena which can't be interpreted by perturbation theory appears.