标准查询 标准查询建筑物声学.构件性能对建筑物声学性能影响的评价.房屋间冲击声音的隔绝
Building acoustics - Estimation of acoustic performance in buildings from the performance of elements - Impact sound insulation between rooms
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标准查询Building acoustics - Estimation of acoustic performance in buildings from the performance of elements - Impact sound insulation between rooms
