 |
| |||
| tubo de memoria | |||
| storage tube: 21 phrases in 7 subjects |
| Antennas and waveguides | 4 |
| Communications | 1 |
| Earth sciences | 1 |
| Electronics | 9 |
| Information technology | 4 |
| Mechanic engineering | 1 |
| Vacuum tubes | 1 |
|
| |||
| tubo de memoria | |||
| storage tube: 21 phrases in 7 subjects |
| Antennas and waveguides | 4 |
| Communications | 1 |
| Earth sciences | 1 |
| Electronics | 9 |
| Information technology | 4 |
| Mechanic engineering | 1 |
| Vacuum tubes | 1 |