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| German | English |
| alkalisches Filter | alkaline filter (against acidification in water catchments and pipelines) |
| benetztes Filter | wetted filter (nature of separator area) |
| diskontinuierliches Filter | discontinuous filter |
| geschlossen liegendes Filter | closed horizontal filter |
| geschlossen stehendes Filter | closed vertical filter |
| geschlossenes Filter | closed filter |
| kleinstporiges Filter | millipore filter (e.g. for filtration of radionuclides) |
| metallisches Filter | metallic filter |
| nichtmetallisches Filter | nonmetallic filter |
| offenes Filter | gravity filter |
| offenes Filter | open filter |
| unbenetztes Filter | unwetted filter (nature of separator area) |