вW(wng)T(mn)ָPVCӲƬPPϳɼcYһT(mn)ȫ(li)T(mn)ă(yu)ݡɱɱsÿƽ20-30Ԫ(ÿƽײ25Ԫ+PPĤ3Ԫ+(xi)zˮ1.5Ԫ+0.5Ԫ=30Ԫ/ƽ)dz(sh)F͑(h)(g)ԻͶY1000ԪI(mi)Ј(chng)ĈD20000T(mn)DϺT(mn)ȫT(mn)ȫWT(mn)ȫ֮ԴVT(mn)ľSgI(y)ϵ͑(h)N(xio)xԼϲgĈDƬL(fng)f(wn)T(mn)DƬܝM(mn)͑(h)Ҫď^NƬT(mn)ᲣT(mn)Ⱦкİȫܵě_ʹҲ(hu )FwRT(mn)(xi)zˮճNǰѸNLõČ(xi)Ï(xi)zˮճљC(ĤC)zΰњݳȥ^⾀(xin)̻wEҊ(jin)V孺O˾ƵĽ̌W(xu)ҕl˷ɱ^ЧùĿǰʹ^