 |
| prise de vues: 389 phrases in 22 subjects |
| Astronautics | 6 |
| Aviation | 44 |
| Cinematography | 3 |
| Construction | 22 |
| Electronics | 1 |
| General | 3 |
| Geology | 2 |
| Hydraulic engineering | 1 |
| Law | 2 |
| Metallurgy | 1 |
| Military | 3 |
| Natural resourses and wildlife conservation | 4 |
| Oil and gas technology | 2 |
| Photography | 3 |
| Physics | 3 |
| Politics | 1 |
| Polygraphy | 7 |
| Radio | 5 |
| Surveying | 77 |
| Technology | 197 |
| Television | 1 |
| United Nations | 1 |