음향 — 방음벽 삽입손실의 현장 결정
声学 - 各种室外隔音屏障插入损耗的原位测定

2020-06-30

声学 各种户外声屏障插入损失的现场测定
Acoustics-In-situ determination of insertion loss of outdoor noise barriers of all types

2005-09-09

Acoustics — In-situ determination of insertion loss of outdoor noise barriers of all types
声学——现场测定所有类型室外隔音屏障的插入损耗

1997-07-24

Railway applications. Track. Noise barriers and related devices acting on airborne sound propagation. Test method for determining the acoustic performance-Extrinsic characteristics. In situ values of insertion loss
铁路应用 轨道作用于空气声传播的隔音屏障和相关装置 测定声学性能的试验方法

2015-10-31