将igs文件导入LT出现以下问题: %ObD2)s6:^
Q#Y k?Kv~
*** Error (AITX_BLANKED_ENTS) *** do-c1;M
F#{gfh
The input file did not contain any supported non blanked independant entities. S
}>n1F_
Fn^C{p^
Please check the documentation for a list of supported entities. E&B{5/rv
|7^^*UzSK:
请教各位是什么原因,如何解决?