Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/66
Is Reference of Angolo di accettanza-it#Sense
Angle d'admission-fr#Sense
Openingshoek-nl#Sense
Öffnungswinkel-de#Sense
Acceptance angle-en#Sense
Åbningsvinkel-da#Sense