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???? ??????? ?? ???????? ???? 70℃
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????? ????? ????? (????? ??????) ?? ???????? ????? ??????? ???? ??? ??? ??????? ??????? ????? 500 ????? ????? ?? ??????? ?????? ?? ????? ???? ???????? ?????????? ??????? ????? 1.5 ????? ?????.
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?????? ??? ?? ??????? ??????? ??????? ?? ????? ???? ?????????? ?????? ????? ????? ???? ?????????? ?????? ??????? ???? ??? ??? ?????? ??????? ??????? ?????? ???????? ????? ??? ????? ??????? ?? ?????? ?????? ???????? ??? ???????? ??????.
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600 ??? ???? ??????? ?????? ??????? ??????? C919
????? ???? ?????? ???? ??? ????????
?????? ????? ??? ????? ????? ?????? ?? ???? FTC-2000 ?? ?????
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????? ???? ?? ????? ???? ????? ???? ???? ??????? ??????? ??? ?????? 20000 ???
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