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^1t2tr ET= 139 @ zlBzll d+= qBg + 914. EeE zl"J6}q Et4ol *olal4. @ Ez+ ztlzl "I? += drH"I= *i+9 EtrI. (3) "JEolE, PlBol+ O ^J6IE 5"I +g "J=q ?n= ryl?)tl q gol4 H +s_tr ,Jq ,+= €4o14. @ *+r+ +9, zl,J^J ol €zl 9*ts trd ol 91trI. @ €Eol 6I= E4ol 9,9_a121 g:e rrE E=ol Hg 'lq. +?]614. trr=tr|.= EH flE HJ ^l 9l oltil O -:{L-O - t-.1 E'a.l drH o= (?=rl.l) - l-.1 rr'il EH-+01 7IE Ed arl.l - _ ll /\lE r- _ = lllo4 '/ I t= - E^IU Itl-tll [-l nlB )!7lE (a) G =Jo lE (b) E16rl,| ral 2-33 gE +?lel +6(El,\lTldt, q=JolE) (4) ulrjzlaL, olrJzJE o trlBol +se+ 7)E rJg 7==. +g + = _ tr tlE_2, zlazl 4)lAl gfl+. +4+?+ dF a+ql^l r*ol B + gl= -Jgolq, + 4, Lil zrg Bal gz z}"-lol9 Tlbg zlzlt 9,14. @ ElPols+ ul+61+ E= violg d4E g + st= ?dol gJ,.r, Bgtg rll Ez+ g * s^-to(cm) 4)lAl g+. drH crH