 |
| |||
| base area; ground area; surface area | |||
| floor space; surface area base; foundation plate | |||
| base surface | |||
|
surface de base : 12 a las frases, 8 temas |
| Aparatos médicos | 1 |
| Aviación | 1 |
| Derecho penal | 1 |
| General | 2 |
| Investigación y desarrollo | 2 |
| Medicina | 1 |
| Metalurgia | 1 |
| Transporte | 3 |