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| нижняя граница интервала | |||
| нижняя грань | |||
| нижняя граница; подошва (пласта) | |||
| lower boundary: 26 phrases in 14 subjects |
| Aerodynamics | 1 |
| Aerohydrodynamics | 4 |
| Crystallography | 1 |
| Electronics | 2 |
| Energy industry | 2 |
| Makarov | 5 |
| Mass media | 2 |
| Mathematics | 2 |
| Metallurgy | 1 |
| Military | 1 |
| Nanotechnology | 1 |
| Physics | 1 |
| Technology | 2 |
| United Nations | 1 |