ANSI S1.18-1999 标准详情
- 标准号:ANSI S1.18-1999
- 中文标题:地面阻抗模板法
- 英文标题:Template Method for Ground Impedance
- 标准类别:美国国家ANSI
- 发布日期:1999
Outlines procedures for obtaining the real and imaginary parts of the specific acoustic impedance of natural ground surfaces outdoors. Templates are used to compare measured sound pressure level differences with a specific set of calculated level dif
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