 |
| metal tube: 30 phrases in 16 subjects |
| Antennas and waveguides | 1 |
| Automated equipment | 1 |
| Cables and cable production | 2 |
| Electronics | 3 |
| General | 1 |
| GOST | 1 |
| Kayaking | 1 |
| Makarov | 4 |
| Mass media | 2 |
| Mechanic engineering | 1 |
| Physics | 1 |
| Polygraphy | 1 |
| Production | 1 |
| Psychology | 1 |
| Technology | 6 |
| Transport | 3 |