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lens section (I. Havkin) | |||
optical span (oleg.vigodsky) |
оптический участок : 37 phrases in 10 subjects |
Astronautics | 1 |
Automobiles | 14 |
Chemistry | 1 |
General | 1 |
Makarov | 2 |
Mass media | 11 |
Military | 3 |
Security systems | 1 |
Surveying | 2 |
Technology | 1 |