Chaos is an outer complex behavior of nonlinear definite system, produced by the system's internal stochastic property, a non-stochasticmovement while looks like stochastic.
混沌是非线性确定性系统中由于内在随机性而产生的外在复杂表现，是一种貌似随机的非随机运动。
2
This paper discusses and introduces several kinds of commonly used model of stochastic differential equation and the method of solution in the groundwater movement.
该文探讨和介绍了地下水运动中几类常用的随机微分方程模型与求解方法。
3
It researches the ship lateral movement multivariant stochastic control law on the basis of multivariant stochastic optimum control theory.