 |
| évacuation des déchets: 12 phrases in 5 subjects |
| Chemistry | 1 |
| Construction | 7 |
| Food industry | 1 |
| Mechanic engineering | 1 |
| Natural resourses and wildlife conservation | 2 |
|
| évacuation des déchets: 12 phrases in 5 subjects |
| Chemistry | 1 |
| Construction | 7 |
| Food industry | 1 |
| Mechanic engineering | 1 |
| Natural resourses and wildlife conservation | 2 |