Hongmei Lu, Qinghui Jia, Li Chen మరియు Liping Zhang
????? ?????? ???? ???? ???????????? ??????? ????? ????? ??????? ????? ???????????? ?????????? ???????? ????? ????????? ??????? , A. ??????? ?????? ???????? ??????? ???????????? ?????????? ?????????? ???????? ?????? ??????? ??????? ?????????. ?????? ??????? ???????????? ???????? ?????? ????? ????? ????????? ?????????? ???????? ??????? ?????????, ?????? ??????????? ????????? ????? ????? ?????????? ????? ????? ????????? A. ?????? ???????? ???? BC?? ?????????????, ????? ???????? ?????, ?????? ?????, ???????? ?????, ??????? ?????, ???????? ?????? ????? ?????????? ??????, ?????? ???, BC?? ???????? ????????? A. ???????? ???????????????. ???? BC ???????? 1.48 ????/???? ????????, ????? ????????? ???????? ??????, ?????? ??????, ???????? ??????, ??????? ??????, ???????? ??????, ????????? ?????? ????? ?????? ????? ??????? ????? ????????? 0.15%, 0.1%, 0.3%, 0.4. %, 0.1%, 0.2%, 4% ????? BC ????????? 2.49 g/L, 2.83 g/L, 2.12 g/L, 2.54 g/L, 2.27 g/L, 1.88 g/L, 2.63 g/L, ??????. ??? ????????? ???????? ??????? ????? ?????? ??-????? BC ?????????? ????? ????????.