 |
| |||
| suction face | |||
| extrados, back of a vault; extrados, line of the extrados; back; extrados (of a vault) | |||
| passive surface; upper surface of the wing | |||
|
extrados : 23 a las frases, 4 temas |
| Construcción | 7 |
| Estructuras de construcción | 1 |
| General | 1 |
| Transporte | 14 |