 |
| |||
| noise amplitude | |||
| шумовой диапазон: 5 phrases in 3 subjects |
| Mass media | 3 |
| Natural resourses and wildlife conservation | 1 |
| Security systems | 1 |
|
| |||
| noise amplitude | |||
| шумовой диапазон: 5 phrases in 3 subjects |
| Mass media | 3 |
| Natural resourses and wildlife conservation | 1 |
| Security systems | 1 |