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??? ?????????? ???????? ??? ??????? ?????-????? ??? ???? ?? ???????? ??? ??????? ????????? ???????????? ??? ????? ????? ?????? ???????, ???? ??? ?????? ????-?????? ???????????? ?????? ??? ????? ???????? ?????? ??????? ???? ??????? ???? ??????????, ???? ???? ????????? ????? ??????? ???????? ??? ?????, ??? ????? ?????? ??????? ??????????? ?????? ???????, ???? ???????? ???? ??? ????? ???????? ????????? ????? ???????????? ??????? ???????? ???? ?????? ????????? ???????????? ????? ????????, ???? ??? ??????? ????? ????????, ??? ?????? ??? ??? ???????????? ???????? ????? ????????? ????? ???? ???????? ???????????, ?????-????? ??? ???????? ?????? ?????? ???? ??? ?????? ?????????? ???????????? ??? ??? ?????? ??? ???????? ??? ?????? ???, ????????????? ???? ??? ???-?????? ????? ???? ???? ?????? ?????? ???? ??????? ??????? ????? ?????? ??: ?? ???? ??????? ????????? ????? 45-60 ℃, ??? ??????? ??????? ???? ?????? ???? ????? ????????? 110 ℃ ?? 190 ℃ ?????????? ????? ????????? ?????? ????? ????? ???? GB/T 8174-2008 ?? ??????????? ???????? ???????? ??? ???? ??????? ?????? ????? ??????? ??????
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