1	变系数线性偏微分方程	linear partial differential equation with variable coefficients
2	常微分方程数值解	numerical solution of ordinary differential equations
3	常系数线性偏微分方程	linear partial differential equation with constant coefficients
4	常系数线性微分方程	linear differential equation with constant coefficients
5	非齐次线性微分方程组	nonhomogeneous linear system of differential equations
6	零元的基本邻域系	fundamental system of neighborhoods of zero element
7	面积	the measure of area;superficial measure;square measure;superficial contents;the measure of area;superficial measure;square measure;superficial content
8	偏微分方程的超定组	overdetermined system of partial differential equations
9	偏微分方程的积分法	method of integration of partial differential equations
10	偏微分方程数值解	numerical solution of partial differential equations
11	欠定偏微分方程组	underdeterminate system of partial differential equations
12	一元多项式的分裂域	splitting field of a polynomial in an indeterminate
13	一元二次方程的判别式	discriminant of a quadratic equation in one unknown
14	一致最精确无偏置信区间	uniformly most accurate unbiased confidence interval
15	轴对称流	axially symmetric flow;axial symmetrical flow;rotationally symmetric flow

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