标准号:XPF90-272-5-2014
英文标准名称:Railwayapplications-Track-Noisebarriersandrelateddevicesactingonairbornesoundpropagation-Testmethodfordeterminingtheacousticperformance-Part5:intrinsiccharacteristics-Insituvaluesofsoundreflectionunderdirectsoundfie
国际标准分类号:17.140.30
93.100