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| главный вал: 51 phrases in 20 subjects |
| Architecture | 1 |
| Armored vehicles | 6 |
| Automated equipment | 2 |
| Automobiles | 5 |
| Electronics | 1 |
| Makarov | 1 |
| Mechanic engineering | 3 |
| Military | 2 |
| Mining | 1 |
| Oil / petroleum | 6 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Pipelines | 1 |
| Polygraphy | 1 |
| Rail transport | 2 |
| Technology | 11 |
| Textile industry | 1 |
| Thermal engineering | 1 |
| Transport | 3 |