B(yng)i(chng)iϵѴ
һ(li)
@(li)tٿٿQ~SնiϿ10-15%^(gu)20%
(li)ϡ
Ҫ֥i(li)ϵϱϿ10%-25%I(yng)B(yng)ã25%;Ҫ10%ҪÓ(li)ֻιiϲ˼(li)
(li)ϡ
iϿ5-10%ĸiʺڲιNιǰ
Zʳ(li)
СQ㶹iϿ50%^(gu)60%
塢(dng)
QӼ~(y)ۡǷѪۡë۵iϿ4-8%iιѪi~(y)ۿ10%QӼ~(y)۾ֻ5-6%@(li)ϕr(sh)Ҫע}ױ
V|(zh)
̼ؐ}}ʳ}iϿ1-2%ʳ}^(gu)0.5%ԪҪ(yn)Ҏ(gu)ʹá
G
ˮĸƼˮɏˮJˮr(nng)~ټޣӵ@(li)G֭I(yng)B(yng)SһռϿ40%