 |
| |||
| acoustic excitation | |||
| sound excitation | |||
| акустическое возбуждение: 4 phrases in 4 subjects |
| Aviation | 1 |
| Nanotechnology | 1 |
| Security systems | 1 |
| Transport | 1 |
|
| |||
| acoustic excitation | |||
| sound excitation | |||
| акустическое возбуждение: 4 phrases in 4 subjects |
| Aviation | 1 |
| Nanotechnology | 1 |
| Security systems | 1 |
| Transport | 1 |