将igs文件导入LT出现以下问题: *bR _
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}b1P!xb!A
*** Error (AITX_BLANKED_ENTS) *** P|G:h&
il:+O08_
The input file did not contain any supported non blanked independant entities. d~.#K S
poM VB{U
Please check the documentation for a list of supported entities. U7{,
*
5^%FEZ&Sp
请教各位是什么原因,如何解决?