Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Normal length of rail-en#Sense
Schienennormallänge-de#Sense
Longitud normal de carril-es#Sense
Normale spoorstaaflengte-nl#Sense
Longueur normale du rail-fr#Sense
Lunghezza normale della rotaia-it#Sense
Regellänge der Schienen-de#Sense
Comprimento normal do carril-pt#Sense
Normallængde for skinner-da#Sense
Κανονικό μήκος σιδηροτροχιάς-el#Sense
Standard length of rail-en#Sense