???? ????? ??????? ? ???????? ? ??????? ?? ????? ?????????????? ?????, ????????? ????????? ??? ??????? ?????? ???? ????? ???????. ?????? ?????????.? ???????? ????????? ? ????????? ??????? ???????? ???????????? ????????? ?????????? ????????? ? ????????? ??????????? ???? ????????? ????????The lesser the focus of these trace factors, the “whiter”