将igs文件导入LT出现以下问题: Lw]:/x
Hiz e
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*** Error (AITX_BLANKED_ENTS) *** rZy38Wo
o4b!U %
The input file did not contain any supported non blanked independant entities. _=_]Yx
b-{\manH
Please check the documentation for a list of supported entities. 'wAOY
:ji_dQ8k
请教各位是什么原因,如何解决?