MHB? ????-???????? Pb-Ca-Sn-Al ???????? ??????????? ???????? ??????, ???? ????? ???????, ????????? ??? ???????? ????? ?????? ???? ???????? ???????????, ????, ??? ????????????? ???? ????????

??????? ?? ?? ?? ?????????, ?????? ????? ????? ??????? ?????? ???????? ????? ??? ???? ????? ?????????.? E39-40, ??? ??? ??? ???????? ?????? ??? ???????????? ?????? ??? ????? ???? ???? ??????? ??????? ????? ????????? ??????

???? ?????? ??????:
???? ?????? ????? ????????? ???????????? ???? ????? ???????, ??????????, ????????, ???? ??? ??????? ????? ???? ??????? ??????????? ???????????? ?? ??????????? ?????? ????????? ???? ???????? ??????? ????????????? ???????????? ??? DC ????? ?????? ????? ???????