????????п?????????????Σ?????????
??????????????βν???????????￡???????????????????в????????????????????????
????????????????ī????????硣
????????д???3Σ?12λ??????????е???????
?????????????Ч????γ????й???д??????????????????￡???????????У??嵰???????γ??д??????Ч?áд?0.5%д???????Ч????????????Ч
?????????????λ????????
????????ο
??
?
???
