 |
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| características da resposta frequencial | |||
| courbes de réponse en fréquence: 6 phrases in 4 subjects |
| Communications | 1 |
| Earth sciences | 1 |
| Electronics | 2 |
| Sound recording | 2 |
|
| |||
| características da resposta frequencial | |||
| courbes de réponse en fréquence: 6 phrases in 4 subjects |
| Communications | 1 |
| Earth sciences | 1 |
| Electronics | 2 |
| Sound recording | 2 |