 |
| |||
| свободный пробег (напр., фотона I. Havkin) | |||
| свободный пробег | |||
| parcours libre: 38 phrases in 14 subjects |
| Astronautics | 1 |
| Astronomy | 5 |
| Aviation | 1 |
| Chemistry | 1 |
| Construction | 1 |
| Forestry | 1 |
| Hydraulic engineering | 1 |
| Metallurgy | 4 |
| Meteorology | 2 |
| Physics | 2 |
| Radio | 3 |
| Technology | 2 |
| Trucks/Lorries | 2 |
| Радиоактивное излучение | 12 |