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| concéntrico | |||
| concêntricas: 37 phrases in 11 subjects |
| Antennas and waveguides | 2 |
| Cables and cable production | 8 |
| Chemistry | 1 |
| Electric motors | 1 |
| Electronics | 10 |
| Industry | 1 |
| Information technology | 1 |
| Mechanic engineering | 6 |
| Medical | 5 |
| Natural sciences | 1 |
| Superconductivity | 1 |