数据处理】 ∑(,-9) (a21-n L P,L (-(,-) △=0.05 k(k-1) + 的=的±Um1=(士) 5E=C4×100 U=ae= or m 6.c=a±U,=(±_)°/m【数据处理】 1. = ° = ° 2． = °/m 3. = % 4. = ° = ° = ( ± )° 5． = % = °/m 6. ( ± ) °/m 1 1 0 ( ) 1 6    = −  i i 2 2 ( ) 1 6    = −  i oi 1 Lc   = 2 1 L c c L    =  ( ( )) ( ) 1 2 1 1 0 1 1 k i i i k k      =   − −   = −  0.05  = 仪 1 2 2 U  1 =  + 仪   1 1 1 = U 1 1 100% U E   =  U E  =  =  = U