centrado : 54 phrases in 13 subjects |
Communications | 5 |
Earth sciences | 1 |
Electronics | 1 |
General | 2 |
Industry | 1 |
Information technology | 6 |
Lighting other than cinema | 1 |
Mathematics | 17 |
Medical | 2 |
Metallurgy | 6 |
Politics | 1 |
Statistics | 6 |
Transport | 5 |