ڸٹ·ϸЧ
Դ:http://www.9yemao.com/ | l(f)rg:2019/3/13 | g[Δ(sh)
߶1mһ5mgwЧ^(q)ƽ_1015dB(A)(125Hz40000Hz1/3l)_20dB(A)һvԽxԽhЧԽ
1ٹ·p(≤16kg/ m2)ɽϻA(ch)cďOӋҪoF(xin)b㣻
2ٹ·ϺھSo׃ɫϴƉĺQȣ
3ٹ·Чϵ(sh)NRC≥0.8Ӌ(qun)Rw≥28dB(A)ɝMNcҪ
4ٹ·Ϗȸd≥2.34KN/m2׃
5ٹ·gWܷ(wn)Ȼh(hun)вl(f)PgF(xin)
6ٹ·Ϙʽ^^Чɸ(j)ÑҪOӋɸNͬʽch(hun)CԴhttp://www.9yemao.com/
P(gun)I֣,ĵַhttp://www.9yemao.com/gongsixinwen/12_4496.html

