 |
| sound spectrum: 13 phrases in 11 subjects |
| Astronautics | 1 |
| Aviation medicine | 1 |
| Construction | 2 |
| Energy industry | 1 |
| Mass media | 1 |
| Medical | 1 |
| Music | 1 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 1 |
| Technology | 1 |
| Telecommunications | 2 |
|
| sound spectrum: 13 phrases in 11 subjects |
| Astronautics | 1 |
| Aviation medicine | 1 |
| Construction | 2 |
| Energy industry | 1 |
| Mass media | 1 |
| Medical | 1 |
| Music | 1 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 1 |
| Technology | 1 |
| Telecommunications | 2 |