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| система труб: 189 phrases in 40 subjects |
| Aerohydrodynamics | 5 |
| Agriculture | 2 |
| Aluminium industry | 3 |
| Architecture | 1 |
| Astronautics | 1 |
| Automated equipment | 1 |
| Caspian | 4 |
| Cement | 1 |
| Combustion gas turbines | 2 |
| Construction | 13 |
| Crystallography | 1 |
| Drilling | 6 |
| Ecology | 1 |
| Electronics | 6 |
| Energy industry | 12 |
| Firefighting and fire-control systems | 3 |
| General | 8 |
| Gold mining | 1 |
| Makarov | 3 |
| Metallurgy | 2 |
| Microelectronics | 1 |
| Military | 2 |
| Molikpaq | 21 |
| Nautical | 12 |
| Oil / petroleum | 11 |
| Oil and gas | 10 |
| Oil and gas technology | 3 |
| Oilfields | 2 |
| Pipelines | 10 |
| Rail transport | 4 |
| Roll stock | 2 |
| Sakhalin | 2 |
| Sakhalin S | 2 |
| Seismology | 1 |
| Shipbuilding | 2 |
| Technology | 15 |
| Thermal Energy | 1 |
| Thermal engineering | 3 |
| Transport | 8 |
| Welding | 1 |