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??? ????? ?????? ??? ????, ?????? ?????????? ????? ??????, ?? ??? ?? ?????? ???????? ???????? ????. ??? ????? ????????? ?? ????? ??? ???? SLA (???????????????) ?-SLM (???? ????? ????????). ???? ???? ???????? ?????? ?????? ????????? ??? ???????, ?? ????? ???????? ???????? ????. ???? ????? ??? ????? SLA ?-SLM ???-????? ????? ????? ???????? ????? ?? ????? ??????? ????? ?????? ????????? ????.

????? ??? ???? SLM????? ?? ??? ????? ??? ???? ????, ??? ????? ????? ????? ?????? ??? ????? ????? ????? ???????? ??????? ????? ??????? ???, ???? ??? ????, ?????? ??? ????. ???? ?? ?????? ?????? ?????? ???? ???? ??????? ???? ?????????? ???????, ?? ????? ???? ?????? ???????? ??????? ???? ????? ????, ??? ??????.

????? ??????,????? SLA ??? ??????????? ?????? UV ?????? ??? ?????, ????? ???? ???? ??? ???? ?????? ???????? ?????. ???? ?? ????? ???? ??? ?????? ???? ?????, ?????? ??????? ????? ????? ???? ???? ??? ??????? ?????.

??? ??????? ???????? ??? SLA ?????? ??? ???? SLM ???? ??????? ??? ??????? ???. ???? SLA ????? ????? ???? ????-??????, SLM ????? ?????? ???? ????? ???? ???? ?????????, ??????? ????? ?? ???. ????? ?? ????? ?? SLM ???????? ???? ??????? ??????? ????, ?????? ??????? ???? ?? ????? ????.

???? ???? ??? ??? ????? ?????? ??? ????. ????? ??? ???? SLM ????? ???? ???? ???? ?????? ??? ??? ???? ????, ?? ????? ???? ?????? ?????? ???? ???? ???????????? ?? ??????? ?????. SLA, ????? ???, ????? ??????? ????? ?????? ???? ???? ??????? ??????, ?? ????? ???? ?????? ?????? ???? ???? ????? ????????? ?????? ???????.

??????, ???? ?????? SLA ?-SLM ???-????? ?? ??????? ????? ?????? ??????, ?? ?????? ???? ?????? ???????? ?????. SLM ??? ????? ??????? ?????? ???? ???? ????? ?? ??????? ???????, ???? ?-SLA ????? ?????? ???? ????? ??????? ?????? ?????? ?????? ????????. ???? ??????? ??? ??? ??????????? ???? ?????? ?????? ???? ?????? ???? ?????? ??????? ????? ???? ???????? ??????? ????????.