sound insulation
短语词组
- sound -insulation value 隔声值
- sound d insulation materials 隔音材料
- sound d insulation 隔声
- Sound proof insulation 隔音绝缘
- theoretical sound -insulation 隔声理论
- building sound acoustic insulation lab 建筑隔声实验室
- Fireproofing sound -insulation door 防火隔声门
- DP 'apparent sound pressure insulation 表观声压隔声值 返回 sound insulation