动画技术：电偶极子辐射的动态仿真,影片动画和实时动画。绘制各个时刻的电力线图，即使用contour函数在 t取不同值的情况下绘制电力线方程-Animation techniques: electric dipole radiation dynamic simulation, film animation and real-time animation. Rendering of each hour power line, which USES contour function in the wt take different values of electric draw equations