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