冲击声隔音 meaning in Chinese

impact sound insulation

Acoustics . measurement of sound insulation in buildings and of building elements . part 7 : field measurements of impact sound insulation of floors
声学.建筑物和建筑元件的隔音测量.第7部分:地板冲击声隔音的现场测量
Acoustics . measurement of sound insulation in buildings and of building elements . part 6 : laboratory measurements of impact sound insulation of floors
声学.建筑物和建筑元件的隔音测量.第6部分:地板冲击声隔音的试验室测量