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| technical statement (olgasyn); engineering opinion (engineering opinion on a wide range of issues, equipment and applications including: design, construction, maintenance and safe use. Alexander Demidov) | |||
| technical estimation | |||
| technical conclusion | |||
| техническое заключение: 16 do fraz, 7 tematyki |
| Budownictwo | 2 |
| Pospolicie | 7 |
| Sachalin | 1 |
| Sachalin s | 1 |
| Technika i technologia | 1 |
| Wojskowość | 3 |
| Zautomatyzowany sprzęt | 1 |