 |
| |||
| unperiodisch | |||
| aperiodisch | |||
| aperiódico: 25 phrases in 11 subjects |
| Antennas and waveguides | 1 |
| Chemistry | 1 |
| Communications | 3 |
| Computer numerical control | 3 |
| Electric motors | 2 |
| Electronics | 2 |
| Mathematics | 2 |
| Measuring instruments | 6 |
| Mechanic engineering | 2 |
| Technology | 2 |
| Transport | 1 |