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| Массовая концентрация: 19 phrases in 14 subjects |
| Aerohydrodynamics | 3 |
| Biochemistry | 2 |
| Chemistry | 1 |
| Construction | 1 |
| Energy industry | 2 |
| Firefighting and fire-control systems | 1 |
| General | 1 |
| Makarov | 1 |
| Navigation | 2 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Pumps | 1 |
| Weapons of mass destruction | 1 |
| Winemaking | 1 |