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effective |
efectivo : 39 phrases in 16 subjects |
Antennas and waveguides | 5 |
Chemistry | 1 |
Electric machinery | 1 |
Electric motors | 1 |
Electric traction | 1 |
Electronics | 6 |
Isolation | 1 |
Lighting other than cinema | 2 |
Magnetics | 4 |
Mathematics | 5 |
Power lines | 1 |
Radiology | 3 |
Semiconductors | 3 |
Sound recording | 1 |
Telegraphy | 3 |
Welding | 1 |