189page

s.l-d =^ll6H .J 1 8 1 s.He _ a^l ol + 4 B;Il .llrI4 "l zlatld4. 5. 1) Bzl (EftnE')6Iq €"Izl €t "J+"lts+ strql +t "Je?lg ++Eg ^l +6t= *B.lcl. ftl'lsE(NazSios) 5% ++.le_tr- zt?J 90C41r,.1 ,l 4 +tr} D a+Ele+ E+C4q *++ "J+^l 7)= z)ea =Fs-eolzl e?ts44 + -e _ orr =41 "JF"ltsg Bq 65%q)4 1-3Ee zl+^l7lE "JF"lts gtrql o--1 0 ss o =-El-"JF"ltszJ4 (Kz t Fr) 4 EF9 = olzl F itse?-l (KzzrFa) 4 HI+ = 'l _ L- CCE"I g4 6 ps+g ^tla *eE FF"I4E- € ,qE "JF"ltsg t s= ge4 ++e4 g Elql 5:r+ ^l a €+4 os Ezl (EEIE,)6I"J EE ^14+ trl€-, rJ4€"14 4"J E€ _ a € Eel "Js_tr 54^lA €"I^Ie+ gg +48^l +g qlolal€ *+t E+ ,l 4*-q Er+^l a ^I4, zJz + rJ*'J9 s*;1q zJ+., et,4^l= A n LlEtr+. 7 . 1) tJ+ ql4ql^] +"JEg ^I+dI^l e*=+. o\ Hr_o ul_e HlEld+= rJ*+(N_eq)r+ d4= a++4E alB(rFH) d+ Ll X a E' Bol ,J+qq ,J+ "Jz ql*+ol 9q, H9 Ezl e*e Eld+= d4= z ++ol ,rlZ q q ts+ A++ql "J azl +4+tr| B. BE, zlrilfl, "l+Hl olr.*, PVA,:'B*f4l 5E 9 1) +tr zrtr4l _ #++g zl*ol ^146I-2, r 9l ql Es.q= a+q4E +s+ 514 +q, ']]^1"-lg + ++^lzl= ql+9 +trI D tEl$zlzl + s tr ol *7) e+ d +6I"1 tlEl-q q +!q = 4+ ulzl ;].zl I6t.l E Eg tI+ *zlzI _tr il 4 +rf. il ++4EI 71 441 - P-Z}z)E+ il 4= HlEld+ql e4 "J= _ zl E= xg *zlal. zl 96Iq a+^J o -g 6ll+= z)ea olElHlol lF ++elg +-a ^l++tr}. 10. 1) Frl g'Js. o \ ol = lr il-,^l 9-21 z) Ll Or I --1 O' eE E O 3) ql"J zC , 'I +C , .ll+C 4) ^ildc 5) 48, d+c +gc 11. 1) EE rllZ (hardpacking) : =44q gE, 6"1 2) +?J ul zJ (semi-hard packing) : flu-l gB a , ae a ^lE 3) €6J ulzJ(softpacking) : +^l(a), E.:7J t2. zlY 4f,= 4?+€ +elq 4e^4 tE(tlEla F), =4^la, a q+9 Azl^tl