能在MDT5/6环境下对已经存在地曲面进行全部和局部区域展开，同时能进行源曲面和展开平面上点和线地相互映射-in MDT5 / 6 right environment to surface already exists for all regional and local begin and can be the source for surface and start Plane dots and lines to the mutua

能在MDT5/6环境下对已经存在地曲面进行全部和局部区域展开，同时能进行源曲面和展开平面上点和线地相互映射-in MDT5/6 right environment to surface already exists for all regional and local begin and can be the source for surface and start Plane dots and lines to the mutual