 |
| grosseur des grains: 7 phrases in 4 subjects |
| Mechanic engineering | 1 |
| Metallurgy | 4 |
| Natural resourses and wildlife conservation | 1 |
| Oil and gas technology | 1 |
|
| grosseur des grains: 7 phrases in 4 subjects |
| Mechanic engineering | 1 |
| Metallurgy | 4 |
| Natural resourses and wildlife conservation | 1 |
| Oil and gas technology | 1 |