NF S31-023-1989 标准详情
- 标准号:NF S31-023-1989
- 中文标题:声学,决心声功率级噪声源,精密方法在混响室离散频率和窄带源,
- 英文标题:acoustics. determination of sound power levels of noise sources. precision methods for discrete-frequency and narrow-band sources in reverberation rooms.
- 标准类别:法国国家标准
- 发布日期: