phase portrait

基本解释

For the given parameters, the quantitative and qualitative analyses to the phase portrait and motion circle of the nonlinear free vibration are dealt with.
对给定参量的非线性自由振动的相位图特性、振动周期等进行了定量及定性研究。
The calculation result indicates that the pseudo-phase portrait to the utmost extent reflects the internal essential characteristics of original complicated system.
计算结果表明：伪相图在极大程度上反映了原复杂系统的内在本质特征。

相图
In the forth chapter,using the way of the phase portrait bifurcation analysis,we study kink-like wave solutions and antikink-like solutions of the F-W equation. The exact explicit parametric representations of those solutions are obtained and the numerical simulation is made.
第四章,利用相图分析的方法,研究了Fornberg-Whitham方程的类似扭波解和类似反扭波解,给定参数值,求出了解的精确表达式,画出其图形。
物理学
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