Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Γραμμή υδραυλικής κλίσεως-el#Sense
Axe hydraulique-fr#Sense
Υδραυλικός άξονας-el#Sense
Hældningslinje-da#Sense
Line of inclination or hydraulic axis-en#Sense
Asse idraulico-it#Sense
Ligne de pente hydraulique-fr#Sense
Gefaellinie-de#Sense
Linea di pendenza-it#Sense
Verhanglijn-nl#Sense