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5、????????????????n1=1.20???????n2=1.50?(1)??????儈?о????к????hA=12000"????????????????????????????????????????????????(2)??????????????????????????????????--7.аm???????а?Ze↓?????а??????m???m??m??-e???????????207???????????Z=1???????1??а????????2????????3?????а????⌒??о
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7、?кн????A??B?rAB?????ii????*???A??B??????????л?????????m?━?A???B??????????A?B?????н?????????????Isina22ppmlw=?????T==????仈?????t?????0mlwaIsin222IsinaA?B??????????????????????????Tml==w0ml-633.????Vm=ì0.52310????Lm=0.28mIIl3ggd0124.?1????????к???=0????=-e2y24pa?2????
8、???I2???l2??a??????l2?оl(xiāng)1???фl2?l1???а???????????????????????5.?1??????????????????????????????????rrr?+D????r???????????rR???????????????
