方程: equation的: 4次方是 The fourth power of 2 i ...阶: steps; stairs微分方程的阶: order of a differential equation; order of differential equation方程式的阶: order of an equation(方程的)解: solution二次方程的: quadratic方程的次: degree of equation方程的端边: member of an equation方程的根: equation root; root of equation方程的轨迹: locus of an equation方程的解集: solution set of equation方程的设立: construction of equation方程的图: graph of an equation; graph of equation方根;方程的根: root差分方程的解: solution of difference equation方程的不变量: invariant of an equation方程的法线式: normal form of equation方程的积表示: product representation of equation方程的近似解: john slater douglas rayner hartree积分方程的核: kernel of an integral equation; kernel of integral equation; nucleus of an integral equation积分方程的和: kernel特性方程的根: performance equation root代数方程的结式: resultant of an algebraic equation代数方程的判别式: discriminant of an algebraic equation