美利体育登录入口官网:BS EN 16727-1:2018
铁路应用 轨道对空气传播声音起作用的隔音屏障和相关装置 非声学性能 静态载荷下的机械性能 计算和测试方法
Railway applications. Track. Noise barriers and related devices acting on airborne sound propagation. Non-acoustic performance. Mechanical performance under static loadings. Calculation and test method