écran de protection: 20 phrases in 12 subjects |
Agriculture | 1 |
Computers | 1 |
Construction | 1 |
Earth sciences | 1 |
Electronics | 2 |
General | 3 |
Information technology | 1 |
Medical | 2 |
Natural resourses and wildlife conservation | 2 |
Nuclear physics | 3 |
Thermal Energy | 1 |
Transport | 2 |