导入了一个cd4518的模型（也不知道对不对），大概是这样：ISO-10303-21;HEADER;FILE_DESCRIPTION((''),'2;1');FILE_NAME('N0016A_ASM','2015-02-25T',('a0412086'),(''),'PRO/ENGINEER BY PARAMETRIC TECHNOLOGY CORPORATION, 2011490','PRO/ENGINEER BY PARAMETRIC TECHNOLOGY CORPORATION, 2011490','');FILE_SCHEMA(('AUTOMOTIVE_DESIGN { 1 0 10303 214 1 1 1 1 }'));ENDSEC;DATA;#1=COLOUR_RGB('',0.E0,4.3E-1,1.E0);#2=COLOUR_RGB('',0.E0,6.6E-1,0.E0);#3=COLOUR_RGB('',1.1E-2,1.2E-2,1.E0);……