Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Rüchwäsche-de#Sense
Rückspülung-de#Sense
Het in tegenstroom wassen-nl#Sense
Πλύση με ανάστροφη ροή-el#Sense
Rückspülen-de#Sense
Lavage par inversion de courant-fr#Sense
Back washing-en#Sense