| Subject | English | French |
| agric., chem. | filtration over pre-filter | filtration sur préfiltre |
| med. | pre-bypass filter | filtre de pré-déviation |
| commun. | pre-detection filter | filtre de prédétection |
| comp., MS | pre-filter | filtre préliminaire (A filter that excludes an event from further processing by Microsoft Operations Manager 2005. The event is not inserted in the database) |
| health. | pre-filter | pré-filtre |
| biotechn. | pre-filter | préfiltre |
| commun. | pre-filtering | pré-filtrage |
| commun., IT | pre-modulator filtering | filtrage avant modulation |