density ratio: 22 phrases in 14 subjects |
Advertising | 1 |
Aerohydrodynamics | 1 |
Astronautics | 1 |
Chemistry | 1 |
Clinical trial | 1 |
Construction | 1 |
Energy industry | 2 |
General | 1 |
Makarov | 3 |
Mathematics | 1 |
Nuclear physics | 1 |
Physics | 1 |
Technology | 6 |
Ventilation | 1 |