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| фокусное расстояние (ammeran) | |||
| дистанция фокусировки (distance from the film plane to the object plane; в то время как "фокусное расстояние" – focal length Oles Usimov) | |||
| focus distance: 26 phrases in 12 subjects |
| Astronomy | 2 |
| Business style | 1 |
| Geology | 2 |
| Measuring instruments | 1 |
| Medical | 2 |
| Medical appliances | 2 |
| Metallurgy | 2 |
| Nuclear physics | 10 |
| Obsolete / dated | 1 |
| Photography | 1 |
| Sakhalin | 1 |
| Seismology | 1 |