 |
| |||
| номинальный уровень записи звука | |||
|
sound reference level : 5 phrases in 3 subjects |
| Mass media | 3 |
| Occupational health & safety | 1 |
| Telecommunications | 1 |
|
| |||
| номинальный уровень записи звука | |||
|
sound reference level : 5 phrases in 3 subjects |
| Mass media | 3 |
| Occupational health & safety | 1 |
| Telecommunications | 1 |