Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Gradient hydraulique-fr#Sense
Hydraulinen painehäviö-fi#Sense
Hydraulisk gradient-sv#Sense
Hydraulisches Druckgefälle-de#Sense
Hydraulisk gradient-da#Sense
Hydraulische gradiënt-nl#Sense
Υδραυλική βαθμίδα-el#Sense
Gradiente hidráulico-pt#Sense
Hydraulic gradient-en#Sense
Gradiente hidráulico-es#Sense