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тройник : 115 phrases in 32 subjects |
| Agriculture | 1 |
| Analytical chemistry | 2 |
| Angling hobby | 1 |
| Antennas and waveguides | 2 |
| Artillery | 1 |
| Chemistry | 1 |
| Construction | 6 |
| Crystallography | 4 |
| Electronics | 3 |
| Energy industry | 6 |
| Equestrian sports | 1 |
| General | 1 |
| Geology | 2 |
| Hydrography | 2 |
| Hydrology | 35 |
| Leather | 5 |
| Machine components | 2 |
| Medical | 1 |
| Medical appliances | 1 |
| Metallurgy | 1 |
| Missiles | 1 |
| Oil / petroleum | 5 |
| Pipelines | 5 |
| Plastics | 1 |
| Plumbing | 2 |
| Public utilities | 1 |
| Radio | 1 |
| Sewing and clothing industry | 2 |
| Shipbuilding | 1 |
| Sports | 3 |
| Technology | 5 |
| Water supply | 10 |