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SEM ??? ???? ?????????? ????????? ????, ? ????? ???? ?????? ?????? ?? SEM. ???? ??? SEM, ???? 20multipled ????????, ?? ????? 200,000 multipled, ?? ????? ?????? ????.????? ????? ?? ????, ??????? ??? SEM ??? ?????-??????, ????, ????? ?????. Microgragh SEM ???? ??????? ??? ??? ?? ???? ???? ????, ??? ???, ??? ?????? ???. ???? ?????? ????, ???? ??? ????????? ???? ???? ????.
???? ????? ?? ???? ???????, ?? ???? ????? ?? chinatungsten ????? ?????:
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