Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6826
Is Reference of Ενεργό εύρος δέσμης-el#Sense
Effektiv lobbredd-sv#Sense
Effektiv strålebredde-da#Sense
Effective beamwidth-en#Sense
Larghezza efficace del fascio-it#Sense
Abertura efetiva do feixe-pt#Sense
Tehollinen keilanleveys-fi#Sense
Wirksame Strahlbreite-de#Sense
Ouverture effective-fr#Sense
Abertura efectiva-es#Sense
Effectieve bundelbreedte-nl#Sense