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䓹c䓹ܱȃ(yu)Lh(hun)˾ҕ¼g®a(chn)ƷM_l(f)ҽb(yu)Ĺ(jng)(chung)¹ģʽOWͽMԾ󾫵Įa(chn)Ʒ|(zh)ՌĹLڸAϿ͑ه

ڄܷ߶ܝM㹤Ҫ䓹ڳ܏^СĹܱgӸ(j)ҪӊAɰӁ߄ȣɝMÑκ΄Ҫ䓹ܱ턂ɲÿ]ڳܶijd(d܇)䓹ܿͨ^ď׃΁ГdȥԄӻ֏ԭ䓹һ׃ױƉĻ4ʹÉ䓹ܵĻwǘO䷀(wn)ĸ߷ӲϣƉĉǰ6OӋԴ_50ʹÉ(ҊAWWA ASTM˜)䓹ʹÉһ20ꡣ\gSolSyȴMø䓹\Еr܃(ni)ˮ|(zh)܇
ˮO؎Ƿ늈ʹ܃(ni)ڮa(chn)g˜Ҏ(gu):w(ni)摪Ϳr|(zh)Ϳc䓹ܵIJ|(zh)ͬL\ܵᣬˮ_׮a(chn)֌Ó䣬ʧȥͿĶʹܵă(ni)FӮa(chn)ã늻Wg،pʹÉLh(hun)Ƽ޹˾ԃԒ18903285555  ˾ַʡн򹤘I(y)@
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䓹ܵă(ni)ڷdz⻬²䓹ܵHazen-Wllliamsֲϵ(sh)Cֵ160һ1䱣صOӋֵ(50Ӌ)150䓹ܵCֵ1(jng)ʹúC=65CֵĽڹܵă(ni)FӮa(chn)ú늻Wgӳڃ(ni)ڽYɵ
䓹cMб^Ĕ(sh)(j)䓹ܵĴֲڶȞ0.05mmg䓹ܵĴֲڶȞ3mmgδg䓹ܵĴֲڶȵ60ȡ䓹ܵHazen-Williamsƽֲϵ(sh)Cֵ1OO䓹ܵC1t12ӢIJ䓹c14Ӣ䓹ܵͬ
fͬӵĹ܏l䓹ܵ䓹Ҫ36%ܺı^䓹ܵHazen-Williamsֲϵ(sh)CֵSݴȜp٣ܺҲ䓹ܹܾܺhڲ䓹ܾҪԭЃɂ:䓹늻Wgأa(chn)(ni)ڽYʹܺ䡣¹ܠB(ti)䓹h䓹Ҫ⻬ֵָ:ڹܾڵĺ(sh)꣬䓹ܾҪı͹ʌ25Rӵ60R:䓹ܾĹʻֲ׃
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