 |
| |||
| abgeflachtes System | |||
| Scheibe f; ebenes System | |||
| плоская система: 23 phrases in 11 subjects |
| Aerodynamics | 1 |
| Cinema equipment | 1 |
| Computers | 2 |
| Construction | 7 |
| Mathematics | 1 |
| Optics branch of physics | 1 |
| Polygraphy | 2 |
| Radio | 1 |
| Road works | 2 |
| Technology | 4 |
| Wood processing | 1 |