ISO 140-1-1997 声学建筑物和建筑构件的隔声测量第1部分：能

liuxilin1215 发表于 2014-12-10 07:59:03

ISO 140-1-1997 Acoustics--Measurement of sound insulation in buildings and of building elements - Part 1: Requirements for laboratory test facilities with suppressed flanking transmission
声学建筑物和建筑构件的隔声测量第1部分：能抑制侧向传声的实验室试验装置的要求

admin 发表于 2014-12-10 09:56:10