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ʲôC50ָC50ָôӋ

2020-11-28 11:45 ϷؔW(wng) www.travelwithnise.com

C50Cָָwϵ֮еһNC50ͨ^(gu)ƌW(xu)ķx(li)ϺCȯҎģ(dng)ԺдԵ50֧͹ƱMɵĘӱC50Á(li)ӳϺCȯЈ(chng)KЈ(chng)ӰI(y)P(pn)İl(f)չrҪϺM(jn)йƱُI(mi)Ԓ(hu)ͨ^(gu)C50׃rķ(li)QُI(mi)ԼُI(mi)

C50 ָ2004 1 2 ʽl(f)Ŀǽһ(g)ɽSҎģ^Ҫڹ߻AͶYָ

Ʒ

ϺCȯ

1ӱx

һ ӱgC180ָӱ

 ӱ50ֻƱ

 xӘ˜ʣҎģ(dng)

ģ xӷֵɽ~ƱM(jn)оCȡǰ50 λĹƱMɘӱЈ(chng)F(jng)(zhun)ίT(hu )JӱĹƱ

2ָӋ㣺

C 50 ָSә෽՘ӱɵ{ɱM(jn)мәӋӋ㹫ʽ飺

ָ=ڳɷݹɵ{ֵ/ * 100

{ֵ = ΣЃr(ji)×{ɔ

ĻѴȫ8