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

? ???, ???? ??????, ???????? ????? ????? ??? ??????? (???? ???? "????? ?????" ???? ??????) ?????????????? ???????? ??????? ??????? ??? ????????? ?????????? ??? ???????? ????? ?????

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