|
|
頻率HZ |
100 |
125 |
200 |
250 |
500 |
1000 |
2000 |
4000 |
5000 |
吸音系數(shù)as |
0.09 |
0.20 |
0.30 |
0.47 |
0.89 |
0.99 |
0.97 |
0.95 |
1.05 |