说明：  3D图形文件转换工具。 支持的3D图形文件格式: 3DS, ASE, BYU, DXF, GMOD, HRC, IV, OBJ, OFF, POV, SMF, STL/STLA, STLB, TEC, TRI/TRIA, TRIB, TXT, UCD, VLA, WRL, XGL
(3D graphics file conversion tools. Support 3D graphics file formats: 3DS, ASE, BYU, DXF, GMOD, HRC, IV, OBJ, OFF, POV, SMF, STL/STLA, STLB, TEC, TRI/TRIA, TRIB, TXT, UCD, VLA, WRL , XGL)