comutadora : 305 phrases in 20 subjects |
Antennas and waveguides | 1 |
Communications | 54 |
Earth sciences | 9 |
Electric traction | 5 |
Electricity generation | 2 |
Electronics | 102 |
General | 3 |
Industry | 3 |
Information technology | 44 |
Materials science | 1 |
Mechanic engineering | 16 |
Metallurgy | 6 |
Microsoft | 6 |
Patents | 2 |
Rail transport | 4 |
Telecommunications | 11 |
Telegraphy | 5 |
Telephony | 9 |
Transformers | 1 |
Transport | 21 |