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(^l ol \-t tl E l> t+gr+ +E) l. +g =Hl= -Ll.trl. eD +E+ +++ gnl= =El+4. (+) L1+ E=4=ql Eg Bl. HI+-J + + ^J+ ^)4 +=+. eD L]]EI eEg +Ccl "*E+ =Hl+r+. 2. _taf= E=tr|-. eD rt^Jg Zl;+ol 4r-16}l, .1]+ qg$. €t z;*d4. (+) zl*€ Ll]+ qEql dE+= EI=tr}. e) ht Elqir+ qql AE+= a++. (+) + H]+€ g-=QEE qE +E"rl B.J+. (rB 2 +4) FD q=+ q= ^IolE _ E =Els= 7I:.F] 4416I q _E=4=oI *rJ-.].t e?llrE += Eg rl++. 3. -iq= -E+zltl. eD hqel drl"l 30mm "l6I"J A+ql= .ll+ A tr-tr -H+.J+. (rB 3 +a) (u}) rrqel ?zlol 30mm "l^J"J a+ql= e4€ ,IE+ q=g d+ Eq{+. 4. tqE +E-dtrf. eD qE4 q.= ^Iolel E=Qs= g + 9.1= E]] -tr szl 6lr. -L Fal= 3-5mm cEE e4. (+) qEg += *Bg t . 6IE dElPzI EI, lzl 9*E+ -J4. (rB 44 @) +=) eD (rB a)9 fOs+ ?"1 qE ^Iol9 P;llts.ql E ol 4zl 9*E+ +el6}7 Eol c49 41ts _sz 4ezl +EBl E ^IoJql =qrJ + ilal ++. (ED qEg tr+a}ts zHA9 6}+cl^.1 *zl ^lz16l e +iI4 0 E 95eE €oI 9il4. 5. Hlal +E= trJ=tr|. (rI) EIH: +Bq 4E= 10-15"C eE kz]= 6J 6}al "J=+. ral 2 E=El= E0l7l -l e.l ? ^l^l FAI -E Et-I Oo ++u el (a) €E I'sd 1u) lH9 -?,lB Erll ral 4 El= g= HJ'J ++ el -165-