hʯ\W(wng)(�heW(wng))ǽپľĽξW(wng)(ǾW(wng))ƳɵľW(wng)hʹõĽپǸ(j)εĴСͬ
ǽ僌ӵĽپΣtʹþ2.0mm4.0mmĽپPVCĽپǾW(wng)tʹ⏽3.0mm4.5mmPVC()߅ľtʹñǾW(wng)һ̖ľ
ʩ�hʯ\W(wng)ĕrЩ|Ҫ
ʯ\W(wng)ԇùˮyxԇ̎ԇӵ摪ƽȥɢ_ԇֱ݆ҪQԇ|ʴ_10gͬryԇӺˮOĤMйˮ(j)ʽӋܶ
�hB(ti)ʯ\W(wng)䑪ùˇøߏ\䓽zɲͬҎ(gu)ľλ\ӣ\Ӄ(ni)ʯ^ĽY
ʯ\W(wng)zoγߴǷMҪ߶Sƫ10%߶Sƫ3%L߶Sƫ3%ƽȸ߲3cm
ʯ\W(wng)ǽپľĽξW(wng)(ǾW(wng))ƳɵľW(wng),ʹõĽپǸ(j)εĴСͬ
ǽ僌ӵĽپ,tʹþ2.0mm4.0mmĽپ,PVCĽپǾW(wng),tʹ⏽3.0mm4.0mmPVC().߅ľtʹñǾW(wng)һ̖ľ
ʯ\W(wng)ʩ|z鑪Mзȡÿ150m2ȡһzcȡyܶƽֵСOӋֵ˜ʲ0.1g/cm3ӱ(sh)С20MrϸʲС90%ϸܶȲõOӋֵ95%ơ
ʯ\W(wng)Pϣ܌