válvulas : 895 phrases in 29 subjects |
Accumulators | 1 |
Agriculture | 42 |
Chemistry | 47 |
Coal | 8 |
Commerce | 2 |
Communications | 5 |
Construction | 7 |
Earth sciences | 90 |
Electric traction | 2 |
Electronics | 70 |
Energy industry | 2 |
Environment | 2 |
General | 54 |
Hobbies and pastimes | 1 |
Industry | 15 |
Information technology | 5 |
Labor law | 4 |
Life sciences | 1 |
Materials science | 26 |
Mechanic engineering | 334 |
Medical | 28 |
Metallurgy | 18 |
Natural sciences | 1 |
Nuclear physics | 1 |
Patents | 2 |
Power electronics | 15 |
Scientific | 1 |
Technology | 2 |
Transport | 109 |