... 晚期保护作用 delayed protection effect 偏微分方程组 system of partial differential equations 高产栽培技术 high yielding practice ...
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用偏微分方程组（partial differential equations，PDEs）描述的连续流模型是考虑群集问 题的另一个视角。
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文献【121证明了穿过平衡点的不变流形 与某一阶奇异拟线性偏微分方程组（partial different equations，PDEs）的解相对应，并给出了该方程存 在局部唯一解析解的充分条件。
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In this thesis, the previous works on well-posedness, boundedness and large time behavior of the solutions are summarized, and large time behavior of the solutions to the PDE system models is analyzed and researched.
本文对以前有关解的适定性、有界性和大时间性态的研究进行了总结,对偏微分方程组模型解的大时间性态进行了分析研究。
参考来源 - 流向变换反应器方程组模型解的大时间性态研究·2,447,543篇论文数据，部分数据来源于NoteExpress
基本的方法是以双曲型偏微分方程组的简单波解为根据的。
The underlying method is based on the simple wave solutions of a system of hyperbolic partial differential equations.
锚泊线的运动方程是一组高非线性的偏微分方程组，求解困难。
The dynamic equation of motion chain is a group of high non-linear differential equations, the solution is difficulty.
根据一阶拟线性偏微分方程组的特征理论，讨论内弹道两相流方程组的类型。
Following the theory on characteristics of first order quasi-linear partial differential equations, classification of the balance equations for two-phase flow in interior ballistics is discussed.
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