sound insulation
短语词组
- 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