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

???? ?, ??????, ??????? ??????? ?????? ??., ???????? (????? "??????? ??????" ????? ??????) ?????????? ????? ??????? MHB ????? ??., ???????? ? ?????? ???? ???????? ????? ????????

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