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| in-house studies | |||
| in-house study | |||
| author's research (DC) | |||
| собственные исследования: 11 phrases in 9 subjects |
| Aviation | 1 |
| Energy industry | 1 |
| European Bank for Reconstruction and Development | 1 |
| General | 2 |
| Geophysics | 2 |
| Makarov | 1 |
| Military | 1 |
| Nanotechnology | 1 |
| Technology | 1 |