method of isoclines的意思|示意

In this paper a new concept of phase contrail of phase plane for higher order nonlinear control system based on isoclines method of second-order linear system is proposed.

提了基于二阶线性系统等倾线法绘制相平面原理，实现了高阶非线性控制系统相平面相轨迹的作图算法。

In this paper, a new optimization method named surround method is introduced. and Its bases upon isoclines of function are closed and doesn't intersect with each other.

介绍了一种优化方法——围法，该方法的基本原理是利用函数等值线封闭且互不相交。