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feed pipe : 61 phrases in 21 subjects |
| Armored vehicles | 1 |
| Astronautics | 6 |
| Automobiles | 5 |
| Aviation | 2 |
| Cement | 1 |
| Construction | 8 |
| Electronics | 2 |
| Energy industry | 1 |
| Makarov | 2 |
| Mechanic engineering | 4 |
| Metallurgy | 1 |
| Military | 4 |
| Mining | 2 |
| Natural resourses and wildlife conservation | 3 |
| Nautical | 2 |
| Oilfields | 1 |
| Rail transport | 3 |
| Shipbuilding | 2 |
| Silicate industry | 1 |
| Technology | 9 |
| Thermal engineering | 1 |