 |
| oil guard: 8 phrases in 6 subjects |
| Armored vehicles | 1 |
| Automated equipment | 2 |
| Mechanic engineering | 1 |
| Metallurgy | 1 |
| Natural resourses and wildlife conservation | 2 |
| Technology | 1 |
|
| oil guard: 8 phrases in 6 subjects |
| Armored vehicles | 1 |
| Automated equipment | 2 |
| Mechanic engineering | 1 |
| Metallurgy | 1 |
| Natural resourses and wildlife conservation | 2 |
| Technology | 1 |