 |
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| focusing system | |||
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| focus-coil assembly | |||
| фокусирующая система: 25 phrases in 12 subjects |
| Aerohydrodynamics | 1 |
| Electronics | 2 |
| High energy physics | 2 |
| Household appliances | 5 |
| Makarov | 1 |
| Mass media | 5 |
| Metallurgy | 1 |
| Military | 1 |
| Ophthalmology | 1 |
| Technology | 4 |
| Television | 1 |
| Vacuum tubes | 1 |