ROCKWOOL Ѯ , . Ѯ . Ѯ . 45 /³ λ10 = 0.033 /() λ25 = 0.035 /() λ = 0.041 /() λ = 0.044 /() , 15 % , 1.5 % , μ = 0.30 /() , 2.0
