 |
| noise abatement: 70 phrases in 14 subjects |
| Acoustics | 2 |
| Aeronautics | 1 |
| Automated equipment | 1 |
| Aviation | 14 |
| Construction | 7 |
| Ecology | 9 |
| General | 5 |
| Law | 1 |
| Makarov | 2 |
| Military | 9 |
| Natural resourses and wildlife conservation | 9 |
| Rail transport | 1 |
| Technology | 4 |
| Transport | 5 |