ڸٹ·ϸЧ
(li)Դ:http://m.szyuhui.cn/ | l(f)r(sh)g:2019/3/13 | g[Δ(sh)
߶1mһ5mgwЧ^(q)ƽ_(d)1015dB(A)(125Hz40000Hz1/3l)_(d)20dB(A)һ(li)vԽxԽh(yun)ЧԽ
1ٹ·p(≤16kg/ m2)ɽϻA(ch)cď(qing)O(sh)Ӌ(j)ҪoF(xin)(chng)b(li)
2ٹ·ϺھSo(h)׃ɫϴƉĺQȣ
3ٹ·Чϵ(sh)NRC≥0.8Ӌ(j)(qun)Rw≥28dB(A)ɝM(mn)Nc(din)Ҫ
4ٹ·Ϗ(qing)ȸd≥2.34KN/m2׃Σ
5ٹ·gW(xu)ܷ(wn)Ȼh(hun)в(hu)l(f)PgF(xin)
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P(gun)I֣,ĵַhttp://m.szyuhui.cn/gongsixinwen/12_4496.html