Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6826
Is Reference of Ac/dc-en#Sense
Wechselstrom/Gleichstrom-de#Sense
WS/GS-de#Sense
Alternating(current)and direct current-en#Sense
GW-de#Sense
Gleichstrom/Wechselstrom-de#Sense