Hongmei Lu, Qinghui Jia, Li Chen மற்றும் Liping Zhang
??????? ??????????? ???? ????? ??????????? ??????? ??????? ?????? ????????? ??????? ?????????? ?????????? ???????????? ???????????? ???????????? , A. ??????? ???????? ???????? ?????????? ???????????? ????????????? ???? ??????????? ?????? ????? ?????????????. ???? ??????????? ?????? ??????? ????????????? ???????? ????? ?????????? ?????????? ????? ????????? ????????????, ????? ????????? ?????? ??????? ?????????? ?????? BC ? ???????? ???????? A. ????????? ?????? ????????? ??????????, ??? ????? ???????? ??????, ?????? ??????, ???????? ??????, ????????? ??????, ???????? ??????. ?????? ??????? ???????? ??????, ?????????, ?.????????? ??.??. ?????? BC ???????? 1.48 g/L ???? ?????????????, ?????????? ??????, ?????? ??????, ???????? ??????, ????????? ??????, ???????? ??????, ???????? ?????? ??????? ?????? ????????? ???????? ??????????? ????? ???????? ????????? 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 ?????????? ?????? ???????????.