movement differential equation 基本例句 运动微分方程 First, the differential equations of motion of the system are established.列出系统的运动微分方程。 Runge-Kutta method is used to solve the equation set, and the responses of cable and rivulet are obtained.采用数值方法对拉索和水线运动微分方程进行求解，得到了拉索和水线的运动规律。