҂?ni)ճгҊ߲ζrɿIB(yng)S˂ϲڷѷNֲ^УijF(xin)Σ˷ѵLČҽBѼķμ҅
1Ѽİl(f)Ҏ(gu)
ѼIJԭ鶡نΰ²׃NڷֲNwsԽڸķNϿɴ20SNhxNNӣ缴ɰl(f)l(f)ͨ^ˮxr(nng)²УgֻҪ10%ֲl(f)ͿɂȾ؉Kض2580%ϵėlڲl(f)
2ѼΣc
Ѽֽм~߲ҪΣ~o~~Ƭвa(chn)ɫɫҎ(gu)tcֱ2-4c܇лoSɫȦ~oYa(chn)ɫc܇oSɫȦBɰ߉Kؕrʹһo׃ڡܺƬγScBƬrʹƬɿ_۹ڵСc¡𣬹r܇Ա^LrgľGɫ߸ⰼ܇ɫgɫ\p
3Ѽķη
1r(nng)I(y)
ӏzֹNӂ߅^(q)xÿͲƷNoNßoNcѿ߲ˌ3ϵ݆֦辡յr(nng)²NҪעⲡĂڸɺ^(q)õιϹMܱ⇊
2ˎ
ڰl(f)x77%ɚÿɝԷۄ400-500Һ53.8%ɚ2000ɑҸ600Һ20%`˾Ҹ500Һ14%j(lu)~ˮ300Һ0.3%-0.5%~ҺMзÿ10҇1ΣB3-4
3N̎
55ˮN300.6%ҺN24Сr5%}N5-10Сr1.05%{N20-40犡Nˮ_ϴˎҺɺٴѿ