常見例句The results of the calculating examples show that this method is accurate when the curved surface is developable, and has high precision when the curved surface is undevelopable. 算例表明，本方法對可展曲面的展平是精確的，對不可展曲面的展平精度很高。An Extremum Developing Method for an Undevelopable Surface and Its Application to Axial Fan Blades 不可展曲面的極值展開法及其在軸流通風機葉片中的應用Undevelopable ruled surface 不可展直紋面 返回 undevelopable