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| |||
| spatial frequency filter | |||
| space-frequency filter | |||
| filter of spatial frequencies | |||
| lens-pinhole arrangement (включающий две линзы и точечную диафрагму) | |||
| spatial filter | |||
| фильтр пространственных частот: 9 phrases in 3 subjects |
| Electronics | 4 |
| Mass media | 3 |
| Nanotechnology | 2 |