régénérateur: 50 phrases in 14 subjects |
Agriculture | 8 |
Antennas and waveguides | 1 |
Chemistry | 3 |
Coal | 1 |
Communications | 7 |
Earth sciences | 1 |
Electronics | 8 |
Environment | 1 |
Industry | 4 |
Information technology | 10 |
Power lines | 2 |
Radio | 1 |
Satellite communications | 1 |
Telegraphy | 2 |