l늼gѽdz***p̼£зdzõđǰlЧֻ20%̫ɢʧhˡʹùlȫ̫ܶɢʧhСc֮l20%Чѽ߀о۟Чضȿ_ʮ@֟**lЧpʹÉвӰ푡ͬrڹIȱĵ̼Դ߀ҪһԴaܺĴɱߣ̼ŷҲࡣۼğȿԜpٌēp߰lЧʣ܉õһN̼ԴкܺõđǰSĿ@֟ҲǘO^ġ_ PVT ؟ˮϵyܿ*ˮϺSPV/T\
\^PVT ϵyľSoɱҪO䱣BϾSͲQ似gs漰ϵyfͬһFϣŲޏy^ҪIļgˆT͙zyOSɱ^**늳ÉsCʹһҪQMҲСU^Sgİlչͳ죬ܿģKԌrOyϵy\РBǰAһ̶Ͻͻlώĸ~SɱͬrϵyģKOӋҲʹòQӱp˾Sorg˹ɱϺ̼ PV/Tgջ_rI PVT gҴؿc늣alչGɫrI
ᘌͬИIcÑĶӻϺ_MIļgFꠣṩԻ PVT QĿǰڵČؿ졢ԴϵyOӋOxٵڵİb{ԇc\Sȫ̞ÑṩһվʽoՓ̘Iļй߀ǼͥסլķֲʽԴoՓrIĜؿc߀ǹISĸܺĸ˾ܑ{SĿcg䣬**mĽQ_ÿһĿF^õԴЧcЧ
PVTϵyڹ늹ЧչF***ݣ***ԽyһϵyDQЧͻ30%Ȃy픹8-10%Чʮ***᷽ͨʽύQcս^ᱣؽYDЧ85%**y픹ϵy60-70%ˮƽͬrܿϵyɌrOyՏضȵȅӑB{cģK\ԴMyPVTϵywԴЧ^yϵy50%F̫ܵĸЧCͨ^ҎacˇMͽMλɱĿͶYԃrȡ
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_⃞ͨYOӋPVTDQЧ^y 15% ϡϺSPV/T\
PVT gڽеăݣڽIPVT gչF***Ĺ܃ݡyУه늾WˮůĴʯԴ PVT ϵyһͨ^l늝M㽨҃Сͼ늵ȣһռğ܉ṩˮڶůijסլĿb PVT ϵyÿɜpټs 30% ĺ 40% ğˮܺͽ\гɱͬrPVT MֱӼɵ픻棬yF^cܵĽyһ^cGɫİlչϺSPV/T\
Ϻ_ԴƼ˾ͬИIIУһֱ̎һJMȡ섓µЈ߶ԁڰlչЄrֵĮaƷ˜ʣϺеȵ^ĭhʼKõ̘Iڱɿ҂ϲ҂ֹЈĥ҂ԏ־CܰĹhРIBĹ˾B҂_MȡğoޝϺ_ԴƼyִһͬx͵δ^ȥ҂ȡһccɿմմϲ෴挦ԽԽҵЈՇ҂Ҫ_ԼIJӭĜʂҪηyMһµľòӭӴͬxͻ