 |
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| direct observations | |||
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| direct observation | |||
| direct sighting | |||
| straight vision | |||
| direct viewing | |||
| прямые наблюдения: 32 phrases in 14 subjects |
| Abbreviation | 1 |
| Astronomy | 1 |
| Aviation | 1 |
| Aviation medicine | 1 |
| Electronics | 3 |
| Makarov | 3 |
| Medical | 1 |
| Medical appliances | 5 |
| Metallurgy | 1 |
| Metrology | 1 |
| Military | 8 |
| Optics branch of physics | 1 |
| Radio | 3 |
| Technology | 2 |