߲һNԷֲҪԓٶȿ졢ԏpʧôԓRe߲İYηʲô
һ߲İY
ܺoF(xin)GɫˮnS߭h(hun)@ƤUչɰɫںɫlOs۵ȴroаɫùҹȾo֦̎l(f)_ʼڲaˮGɫߣSl(f)չߔUչLlκںɫƤӸϵ~ƬuMʢԺ֦辺ͽĽȰl(f)׃ܛȴrаɫù҂C^(q)gl(f)ʬF(xin)бl(f)ͺ̓ɷNͣ
1l(f)ͣڶ̕rgȴeֲϵ׃ָ⣬@YǹˮOװl(f)@N͵߲Դpʧ
2ͣg@İl(f)ģl(f)λҪֲo֦̎F(xin)кںɫėll(f)rgһڳںSضȵ͝ȵ߶l(f)ĸ߷ڶF(xin)ʢ
вֲooϵ36ط^һ辵ĵطF(xin)кںɫėlҲ@խOsϵ֦~ήȫѸٿ۵@Re߲Ҫ
;cl(f)l
߲ùl(f)һNԲӡԫڲwϺԽеIJwʸgҪȾԴgҪˮˮr²ͽ|ȾֲĽMĚסںͱƤoֲǵ͵
߲İl(f)cg؝ȳPضԽԽl(f)Խһ㮔gѮƽ20ϣ80%eDrOװl(f)Сԓڜһ6ѮMl(f)߷¶t7µ8³Ml(f)߷ڡƽNֲܶ^^BNֲʩ^ˮ^ˮ^ַ߲İl(f)
η
1rI(y)ʩ݆cѹ߲Bԓcʮֻƻ[⡢²߲˻Zʳ݆DzҷNֲԓļMиߜؐ
2иĤwСˮڝֹˮ࣬rˮ
3ˎƺҵĜķδʩǰγgˎΡ50%ϩɝԷۄ1500Һ20%ɝԷۄ1000Һ25%˪pɝԷۄ500Һ22.5%ͪ30%˪裨ֿ1000Һ 69%ϩi\ɝԷۄ600Һ68%˪i\ˮɢ500Һ75%ɭ\˪1000ҺȹÿˎҺ250ÿ7101ΣBm(x)23ע݆Qˎ
ϾRe߲ķԼδʩNֲgͷС֪RСՈPעr̾W