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| главное направление | |||
| главное направление (спайности) | |||
| основное направление | |||
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principal direction : 15 phrases in 10 subjects |
| Air defense | 1 |
| Automated equipment | 1 |
| Construction | 1 |
| Geology | 1 |
| Makarov | 4 |
| Metallurgy | 1 |
| Military | 3 |
| Nautical | 1 |
| Optics branch of physics | 1 |
| Technology | 1 |