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research activity : 44 phrases in 16 subjects |
| Accounting | 1 |
| Astronautics | 1 |
| Business | 4 |
| Economics | 3 |
| Energy industry | 3 |
| Fish farming pisciculture | 1 |
| General | 1 |
| Makarov | 1 |
| Mathematics | 2 |
| Military | 21 |
| Navigation | 1 |
| Patents | 1 |
| Politics | 1 |
| Quality control and standards | 1 |
| Seismology | 1 |
| Technology | 1 |