某火车站售票厅吸声降噪
Noise reduction in the ticket hall of the railway station
某火车站售票厅吸声降噪 |
| 王世龙, 路跻泽, 张晓排, 温博 |
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Noise reduction in the ticket hall of the railway station |
| Shilong Wang, Jize Lu, Xiaopai Zhang, Bo Wen |
| 图3 两种海绵的无规入射吸声系数 |
| Fig.3 Random incidence sound absorption coefficient of two sponges |
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