短語詞組短語equivalent secant rigidity method 等效割線剛度法secant updating method 割線法;弦修正法secant survey method 割線法polynomial secant iterative method 多項(xiàng)式割線迭代法Secant stiffness method 割線剛度法Secant iterative method 割線迭代法newton s secant iteration method 牛頓弦截法Newton 's Secant iteration method 牛頓弦截法 返回 secant method