???? ???? ?????????? ??? ???????? ?????? ???????? ?????? ??????????????? ??? ?? ?????????? ???????R&D?????????? ?? ??? ?????·??? ??????? ?????????????????? ?????? ???? ???? ?????????????? ?? ??????.: ???? ?????????, ?????, ???????? ?????????????? ?????? ???????? ???? ‘????????????? ???? ???? ????? ???? ?????? ???????? ???? ???????? ????