这个程序主要是把二维翼型坐标变换成三维翼型坐标，通过翼型位置-弦长-扭角等参数得到三维翼型坐标，完成后面的三维建模-This program is mainly two-dimensional airfoil coordinate into the three-dimensional coordinates of the airfoil, the airfoil by position- to give the three-dimensional coordinates of the airfoil twist angle and other parameters, complete three-dimensional modeling of the back- chord