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focagem | |||
concentração |
focalizzazione : 46 phrases in 11 subjects |
Communications | 4 |
Earth sciences | 5 |
Electronics | 14 |
Energy industry | 1 |
Information technology | 4 |
Life sciences | 4 |
Natural sciences | 1 |
Radio | 4 |
Radiology | 1 |
Thermal Energy | 1 |
Vacuum tubes | 7 |