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| первичные исследования (Many of these inventions were based on what we might call upstream research, not the implementation of research that was largely done elsewhere. A.Rezvov) | |||
| исследования в области разведки и добычи (MichaelBurov) | |||
| upstream research: 1 צירופים, 1 נושאים |
| סחלין | 1 |