短語詞組短語sound -insulation value 隔聲值sound d insulation materials 隔音材料sound d insulation 隔聲Sound proof insulation 隔音絕緣theoretical sound -insulation 隔聲理論building sound acoustic insulation lab 建築隔聲實(shí)騐室Fireproofing sound -insulation door 防火隔聲門DP 'apparent sound pressure insulation 表觀聲壓隔聲值 返回 sound insulation