给出了变系数二阶齐次线性常微分方程的一种积分形式解和几类变系数二阶齐线性常微分方程的普遍解。
The solutions of interal form and the general solutions of some second order homogeneous linear differential equations with variable coefficient are given.
分析无穷空间点源扰动函数积分形式的解。
The solution in integral form of Green's function of a point source in infinite space is analysed.
同时为便于积分，在经典的高应变率材料动态本构关系中，使应变强化项与应变率项相互解耦，并引入自然应变形式。
In addition, to be integrable, the classical dynamic institution for high-strain-rate materials is decoupled and natural strain is introduced.
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