撞击声音 meaning in Chinese

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Acoustics - rating of sound insulation in buildings and of building elements - impact sound insulation
声学.建筑物和建筑物构件内的隔音测定撞击声音的隔离
1 acoustics - measurement of floor impact sound insulation of buildings - part 1 : method using standard light impact source erratum 1
声学.建筑物楼板抗撞击声音的隔音性能测量.第1部分:使用标准轻撞击源的试验方法
1 acoustics - measurement of floor impact sound insulation of buildings - part 2 : method using standard heavy impact sources erratum 1
声学.建筑物楼板抗撞击声音的隔音性能测量.第2部分:使用标准重撞击源的试验方法