1)ilelerminantal equation,行列式方程2)Huckel determinate equation,Huckel行列式方程3)formulation,列方程式4)linear equation group and determinant,线性方程组与行列式5)cubic determinant,立方行列式6)Modes of train operation,列车开行方式
用法例句
Teaching designation on linear equation group and determinant;
