 |
| barrel-reflector: 6 phrases in 6 subjects |
| Antennas and waveguides | 1 |
| Electronics | 1 |
| Metallurgy | 1 |
| Shipbuilding | 1 |
| Telecommunications | 1 |
| Weapons and gunsmithing | 1 |
|
| barrel-reflector: 6 phrases in 6 subjects |
| Antennas and waveguides | 1 |
| Electronics | 1 |
| Metallurgy | 1 |
| Shipbuilding | 1 |
| Telecommunications | 1 |
| Weapons and gunsmithing | 1 |