2021-06-02 16:00发布 生成海报
地心引力线:(MA(C,30)+MA(C,72))/2,POINTDOT,COLORYELLOW;
引力区上轨:地心引力线*1.1,POINTDOT,COLORCYAN;
引力区下轨:地心引力线*0.9,POINTDOT,COLORBLUE;