?s ??t?r ?? ?t?r?t???s ???s?? ??tt??? ??? ??t?r ??? ?t?r?t???s ???s????? ??st ??s? ?? ??t?r ?? ?t?r?t???s ???s????tt???? ??? r????t??? st?rts t? ???? ? s????????t ??? ???t ?? t?? ??????t???s ?? ?????s i = 4 ,
?r ?r?ss?r? 1 atm?? ??? ??r t?? t?st ??s? ? ???r? t?? r?s?r???r ?r?ss?r? ?s 0.1 atm? ? ,