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发表于 2007-11-17 18:01:00
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来自: 中国湖北武汉
N6等于Ra0.8
& g- b9 E, e+ n5 y另外:N1 = 0.025um7 _1 N' r$ c+ t6 e( n
. m( g& A# f9 r0 I& A1 s
N2 = 0.05um1 [/ P, v1 a' w/ \6 w L
+ i3 G( f$ J0 o. R8 `' q4 MN3 = 0.1um c& U0 @0 S0 ]! i5 N' C
6 R0 N- _% L8 c2 i+ |* J
N4 = 0.2um+ y5 V# f5 Y) M5 m+ z/ A
5 q4 [( v$ l W. h; z9 a* t) }
N5 = 0.4um3 I7 b$ d. T4 ]* M6 T/ ?
- |* n9 O! t9 ^7 B
N7 = 1.6um+ c& M, f, \2 m: G ?
% f Q' @' t4 {# u9 \
N8 = 3.2um
5 [# R* C4 N+ f1 ?2 u3 {0 G: I i. E3 f* x+ @* S7 g- Z
N9 = 6.3um |
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