本研究是在水稻群体生长模型和纵卷叶螟种群生命系统模拟模型的基础上进行的。
The study has been based on both the model for rice population growth and the model for simulating population life system of lice case worm.
在本文中，考虑到传染病对宿主生物群体生长动力学的影响，对终身免疫型传染病的动力学建立了一个偏微分方程的模型。
In this paper, regarding the influence of infectious diseases on the dynamics of host population growth, a PDE model is established for the dynamics of infectious diseases with lifelong immunity.
本文对厚朴人工林的生长规律进行了系统研究，建立了其栽培群体的各种生长模型。
The growth patterns of Magnolia officinalis plantations were systematically studied. Various growth models of the cultivated populations were established.
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