һPVCa(chn)Ʒȱݙzyϵy(tng)
ϵy(tng)Mڸ߷ֱCûҶȌȡzyPVCa(chn)^бnxȱݔzyϸ/ϸ̖ʾһλȱƷ̎
a(chn)ƷȱD

ϵy(tng)zyԭB
Dλú(j)zy^(q)(ni)PVCװɫǷnxȺɫK۳^OõĻҶȲֵȡȱʾȱλü@ʾȱݴСݔzy̖
ϵy(tng)Ҫ
1.ԄӌDMжλ
2.a(chn)ƷۡxȱMЙzy
3.a(chn)ƷϸoOK̖a(chn)ƷϸrݔNG̖l(f)̖
4.Ԅӱ治ϸҪĈD
5.ɱzy(sh)(j)vʷ(sh)(j)ԃ
ġҪgc
1.ֻ躆OԄӈ(zh)Йzy
2.zyܛ㷨ȫ_l(f)ϵy(tng)ᘌԏ
3.xČֲMЙzyߙzy`
4.I(y)ԴOӋ_zy΄ɣ
5.bY(ji)(gu)oڲSo͔U
6.ɿԸߣ\з(wn)mϸNF(xin)\Зl
7.PCƽ_ϵy(tng)ɔUԏ
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