 |
|
quick opening : 29 phrases in 13 subjects |
| Armored vehicles | 1 |
| Astronautics | 2 |
| Automated equipment | 2 |
| Drilling | 1 |
| Electrical engineering | 1 |
| Energy industry | 1 |
| Makarov | 1 |
| Military | 6 |
| Mining | 1 |
| Oil / petroleum | 5 |
| Oilfields | 1 |
| Pulp and paper industry | 2 |
| Technology | 5 |