 |
| couche superficielle: 15 phrases in 9 subjects |
| Construction | 2 |
| Electronics | 1 |
| General | 1 |
| Geology | 1 |
| Mechanic engineering | 2 |
| Metallurgy | 3 |
| Meteorology | 1 |
| Natural resourses and wildlife conservation | 3 |
| Welding | 1 |
|
| couche superficielle: 15 phrases in 9 subjects |
| Construction | 2 |
| Electronics | 1 |
| General | 1 |
| Geology | 1 |
| Mechanic engineering | 2 |
| Metallurgy | 3 |
| Meteorology | 1 |
| Natural resourses and wildlife conservation | 3 |
| Welding | 1 |