retardo : 131 phrases in 20 subjects |
Antennas and waveguides | 2 |
Chemistry | 1 |
Coal | 4 |
Communications | 29 |
Earth sciences | 2 |
Electric traction | 1 |
Electronics | 59 |
Environment | 1 |
General | 1 |
Industry | 1 |
Information technology | 10 |
Magnetics | 2 |
Metallurgy | 4 |
Microsoft | 1 |
Radio | 3 |
Scientific | 1 |
Technology | 1 |
Telecommunications | 2 |
Thermal Energy | 1 |
Transport | 5 |