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???? ??????? ?? ???????? ???? 70℃
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?????? ???????? ?? ???? ???? ??? 20 ???? ?? ?????? ??? ?????
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?????? 21????? 2017/ ???? ?????? ??????? ????? ????? ?? ??? ?????? ????? (????????) ???? ????? ???? ?????? ?????? ???? ?? ???? ?? ??? ?????? ?? ????? ????? ????? ???? ???? ???? ??????? ????? ???? ???????? .
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???? ?????? ???? ?? ???? ???? ???? ??? ????? ???? ?????? ???? ?? ??? ?????? ???? ?????? ????? ???? ?? 29 ????? ??? 2015 ?????? ???? ????? ?????? ???? ?? ????? ????? ???? ?????.
???? ??? ????????? ??????? ???? ?? ????????
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600 ??? ???? ??????? ?????? ??????? ??????? C919
????? ???? ?????? ???? ??? ????????
?????? ????? ??? ????? ????? ?????? ?? ???? FTC-2000 ?? ?????
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????? ???? ?? ????? ???? ????? ???? ???? ??????? ??????? ??? ?????? 20000 ???
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