将igs文件导入LT出现以下问题: iJ
@p:
BqUwvB4
*** Error (AITX_BLANKED_ENTS) *** uh%
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Mi\-
9-
The input file did not contain any supported non blanked independant entities. 6cD3(//
{rn^
Please check the documentation for a list of supported entities. :#cJZ\YH
*Uy;P>8
请教各位是什么原因,如何解决?