Characteristic solution and finite difference solution are derived respectively and water saturation distribution curves are presented and the law of the moving boundary is found.
这种模型属于具有活动边界的非线性问题，分别用特征线法和有限差分法求解，得到了含水饱和度分布和活动边界的变化规律。
Using the law of approach to saturation, the saturation moment was gotten.
利用趋近饱和定律计算了样品的饱和磁矩。
The normal form of the linear systems with input saturation was considered; and then the control law was designed by constructing low-gain, high-gain and CNF gradually.
该方法先考虑输入具有饱和非线性的线性系统一般形式，再通过构造低增益部分、高增益非线性部分及复合非线性控制律三步完成设计。
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