Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Guide de faisceau-fr#Sense
Beam guide-en#Sense
Canale sperimentale-it#Sense
Strahlführungsrohr-de#Sense
Stråleleder-da#Sense
Guia de feixe-pt#Sense
Bundelkanaal-nl#Sense