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???? ??????? ?? ???????? ???? 70℃
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???? ????? ?? ??????? ??????? ????? ?????? ??????? ?????? ????????? ??????? ????????? ?????? ????? ??????? .
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???? ?????? ?? ????????? ??????? ?? ???? ????????? ?????????? ?????? ??????? ????????? ?? ????? ???? ????? ????? ? ??? ???? ?????? ??????? ??????? ?? ???? ????????? ????????? ??????? ??? ??????? ?????????? ????????? .
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???? ??? ????????? ??????? ???? ?? ????????
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600 ??? ???? ??????? ?????? ??????? ??????? C919
????? ???? ?????? ???? ??? ????????
?????? ????? ??? ????? ????? ?????? ?? ???? FTC-2000 ?? ?????
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????? ???? ?? ????? ???? ????? ???? ???? ??????? ??????? ??? ?????? 20000 ???
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