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. ?? ????? ???? ???? ???? ????? ?????? ??? ?? ????? ????? ??? ??????? ????? (Local Plastic deformation) ?? ?????? ?? ??????? ??? ?? ????.. ?????? ?????? ????. ?????? ???? ?? ????????? ????? ????? ???? ???? ??? 1- ???? ? ?????2- ??? ???? (Non-destructive)3- ???? ?? ???? ??????? ?? ?? ???? ??
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