例句與造句

1. this article studies the existion of homoclinic orbit bifurcation of sirs modle, moreover, it determines the relative location of stable manifolds and unstable manifold of hyperbolic fixed points of this system, therefore, it shows the parameter range of existing limit circle
   本文討論了具有暫時免疫傳染病模型同宿軌道分支的存在性，利用melnikov函數(shù)確定了該系統(tǒng)雙曲不動點的穩(wěn)定和不穩(wěn)定流形的相對位置，從而給出存在極限環(huán)的參數(shù)范圍。
2. It's difficult to find hyperbolic fixed point in a sentence. 用hyperbolic fixed point造句挺難的