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| French | English |
| aérateur à impact | impingement aerator |
| impact anthropogène | anthropogenic impacts (on the ecosystem) |
| impact primaire sur l'environnement | primary environmental impacts (related to construction, operation, maintenance of works) |
| impact primaire sur l'environnement | direct environmental impacts (related to construction, operation, maintenance of works) |
| impact secondaire sur l'environnement | secondary environmental impacts (inclusive changes in land use, population, economic growth) |
| impact secondaire sur l'environnement | indirect environmental impacts (inclusive changes in land use, population, economic growth) |
| insonorisation du bruit d'impact | structure-borne sound insulation |
| méthode d'impact | impinge method (air quality measurement; counting of particulates impinging on an object) |
| vitesse d'impact | impaction velocity |