(zh)И˜:gb/t20784-2006rI(y)(32̖)ƷڵӛB(ti)(n)13%,k2o44.5%
tjbhuiľ(VVʩ)(20+:1+z1)*2
aƷc:
ľ⛡һN߿ƼaƷ,Ma⛞Ҫԭ,e(:)(yu)ȼg,YֲLA_l(f)Ƶ͏VVsֲIB(yng){(ji),(ءȺжNֲLĵֲͺЙC{|̦ͶNԪزüg϶),c,,ߝȷ(wn)Ч:Чһȫ12СrMIB(yng)ƽЧֹͮaƷȾ,aGɫoraƷķڇ20ʡеƏVͶNԇȡeõЧ
1ƷeӴMϹLl(f)c|T,IB(yng)ƽ⡣䷽ƌW:Ʒ|ɫ̓\úƷ|ýЧ,տеĵ,Ѹٺͷֽй̶Ͳ˱յ⛼a\Fifϡȱ70NԪ
2Ʒx͝ɟL̉AزܽʺTl(f)Mϵl(f)_,ϵՠIB(yng)@,߸ϵ
3Ʒֲ,Tl(f)ѿֻ,ٸɫڷ,ڼӿLl(f),ƽIB(yng),L,o,ǰ,仨Ml(f)c,A͜pѹĸĚιsСȹl(f)Y,Lr^ڼ,߮a25%~60%
4ƷAϹ~S~~~~s~ȱذY,ø,~G~,~Gغ,(yu)ݻa,o,ЧͨҺʵĎʮװٱ,10犃ȾͿɳʶcֲPϵѸنLϵy(tng),C(yu)ֲMԭ|Дಡ,NøĻԡ˴,ʹֲ꽡Ѳ@p
5õB(yng)ጷ{ع,B(yng)ǰڲ̫,B(yng)ֲ̫,ƽ,FӑB(ti)ƽp},Ⱦh(hun),_l(f)oB(ti)rI(y)͟oaƷ,ʹacƷ|pʩñƷ߹Ϲ}AͿɟL
m:
]ʹ:1.ƷmСˮ֥ͲJѡS۲ˡ{N~,ܹݡ~t^ɽˎ[⡢ˎġֈ@ľʳþȶN
ʹ÷:
1.Ҏ(gu)ʹÿˮ30~50,кÿˮ20~30
2?()ÿˮ30,кÿˮ15~20ʩ,Zʳʩ2~3,3~5Ρȱʵ؉KmӇʩΔ,gС5~10
ע:
1.aƷʹ10cǰ,4~5c,(ļc)ʩ,YӰ|,10ַN겻ӰˎЧ
2.ڻҬmÿˮ60,rgͬ
3|:5aҊϸCa
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