• 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.

    根据阶拟线性微分方程组特征理论,讨论弹道两相方程组的类型

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  • The monition equations of airfoil are written as the four dimensional first order differential equations. Taking airspeed and the linear part of pitching stiffness as the bifurcation parameters.

    机翼运动方程可以写成常微分方程,广义气流速度线性俯仰刚度作为岔参数。

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  • We discuss the first order linear differential equations with constant coefficients and give a new vector method of it.

    讨论系数线性微分方程组通解问题给出新的向量解法。

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  • We discuss the first order linear differential equations with constant coefficients and give a new vector method of it.

    讨论系数线性微分方程组通解问题给出新的向量解法。

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