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| двухлинзовый объектив | |||
| двулинзовый объектив; двулинзовый окуляр | |||
| дипольная линза | |||
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double lens : 11 phrases in 4 subjects |
| Makarov | 2 |
| Nanotechnology | 2 |
| Optics branch of physics | 2 |
| Technology | 5 |
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