???? ???? ?? ????? ?????? ???? ?-????. ??? ???? ? ??? ???? . ???? ???? ???? ???? ???????? ???? ???? UV , {???? ?? ???? ????? ???? . ??? ???? ??? {???? ????? ??? ?? ???? . ????? {????? ????? ??? | ???? ???? ??? ??? . ???? ???? ???? ???? ??????? ????? ?????? ???? ???? ???????, ?????? ????? ????? ????????? ?????? ?? ???? ???. ???? ?????