ISO 140-7-1998 声学建筑物和建筑构件的隔声测量第7部分：楼

liuxilin1215 发表于 2014-12-10 08:00:16

ISO 140-7-1998 Acoustics — Measurement of sound insulation in buildings and of building elements — Part 7: Field measurements of impact sound insulation of floors
声学建筑物和建筑构件的隔声测量第7部分：楼板撞击声隔声的现场测量

admin 发表于 2014-12-10 09:56:12