 |
| |||
| absorption phonique; atténuation acoustique; absorption des bruits; absorption des sons | |||
| absorption du son | |||
| absorption acoustique | |||
| звукопоглощение: 11 phrases in 6 subjects |
| Acoustics | 1 |
| Astronautics | 1 |
| Aviation | 1 |
| Construction | 3 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 4 |