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путь свободен : 52 phrases in 17 subjects |
| Aerohydrodynamics | 1 |
| American usage, not spelling | 1 |
| Antennas and waveguides | 1 |
| Astronomy | 2 |
| Aviation | 1 |
| Electronics | 2 |
| Figurative | 1 |
| Geography | 1 |
| Makarov | 3 |
| Mathematics | 2 |
| Medical | 3 |
| Microsoft | 1 |
| Military | 5 |
| Radio | 1 |
| Rail transport | 23 |
| Robotics | 1 |
| Technology | 3 |