ill <11 <11
(5) 17-18 )K±KS#^I*±*^JII^^ ^
(6) jKii#:
90°, MWM,
(2)
mm-nmm?
(4)i^ltll: iSllSl,
swHi,
4. ¥iitithTJil^2]
(2) umm-.^!n#A?s^T±,iha^jn^fl,
±li^^o
(4) T?^;K^#^?sE±l^RA^:
(-) TKMiJilA
1.
(1) #Eh^j^±, 90°, (0 7-19).
^m^ap'I^jISo
(2) AMS^TS, 147
(3)
(4) tt±fe^,33:;£SgMJft,