... periodic circular function 周期三角函数 periodic coefficient 周期系数 periodic cohomology 周期上同调 ...
基于58个网页-相关网页
periodic coefficient system 周期系数系统
small periodic coefficient 小周期系数
periodic coefficient systems 周期系数系统
Periodic shear coefficient 周期抗剪切系数
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An epidemic SIS model whose coefficient is almost periodic functions is studied. A sufficient condition of existence and uniqueness of positive periodic solution is obtained.
对系数是概周期函数的传染病s IS模型进行了研究，得到了概周期解存在惟一的一个充分条件。
By the discretization of spatial variable in the equation, a third-order differential system of equations containing periodic time-varying coefficient is derived.
采用微分求积法对方程中的空间变量进行离散，得到仅含有时间变量的三阶周期系数微分方程组。
The reflection coefficient for a periodic structure computed by this method is in good agreement with the result calculated by the propagating matrix method.
应用该方法分析了一种周期性结构的反射特性，与用传播矩阵方法所得结果一致。
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