ponto de referência : 34 phrases in 13 subjects |
Communications | 9 |
Earth sciences | 1 |
Electronics | 2 |
Fish farming pisciculture | 1 |
General | 2 |
Information technology | 1 |
Life sciences | 1 |
Medical | 1 |
Natural sciences | 2 |
Physical sciences | 4 |
Piezoelectric crystals | 1 |
Statistics | 1 |
Transport | 8 |