Installation of 155m long noise barriers and 520m of partial noise enclosure ; and 装设155米长的隔音屏障520米长的局部隔声罩以及
Investigation on low - frequency measurement method of sound insulation for underwater acoustical material 水声材料低频隔声测试研究
Standard specification for polyimide flexible cellular thermal and sound absorbing insulation 聚酰亚胺柔性多孔隔热和隔声材料标准规范
Standard test method for determination of decay rates for use in sound insulation test methods 隔声试验方法中衰减率测定的标准试验方法
Acoustics - determination of sound insulation performance of cabins - laborartory and in situ measurements 声学隔声间的隔声性能测定实验室和现场测量
Acoustics - determination of sound insulation performance of cabins - laboratory and in situ measurements 声学.客舱隔声性能的测定.实验室和现场测量
Research on characteristic of sound insulation for building in the vicinity of beijing international airport 北京国际机场周边地区建筑隔声测试与分析
Shutters - acoustic insulation relative to airborne sound - expression of performance ; german version en 14759 : 2005 百叶窗.空气声相关的隔声.性能表示
Acoustics - determination of sound insulation performances of enclosures - measurements in situ for acceptance and verification purposes 声学.隔音罩隔声性能的测定.现场测定
Shutters . shutters - acoustic insulation relative to airborne sound - expression of performance . requirement - classification 百叶窗.与空气载声相关的隔声.性能表示.设备.分类
