| |||
| active surface (of ultrasonic head); effective irradiation surface (of ultrasonic head) | |||
| face of tooth; flank; tooth flank; tooth surface | |||
| wind collector | |||
| active area | |||
| active surface | |||
|
surface active : 12 phrases, 6 sujets |
| Chimie | 1 |
| Informatique | 1 |
| Métallurgie | 6 |
| Ressources naturelles et conservation de la faune | 1 |
| Sciences de la Terre | 2 |
| Transport | 1 |