标题: ISO 140-5:1998 [打印本页] 作者: fjjian 时间: 2013-11-13 11:56:00 标题: ISO 140-5:1998
Acoustics -- Measurement of sound insulation in buildings and of building elements -- Part 5: Field measurements of airborne sound insulation of façade elements and façades 作者: sigh007 时间: 2013-11-13 11:56:01