Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Drain fermé avec aqueduc souterrain-fr#Sense
Drenaggio profondo munito di cunicolo e vespaio-it#Sense
"rockfill tile drain"-en#Sense
Drenaggio sotterraneo-it#Sense
Dren cubierto con colector subterráneo-es#Sense
Stone-filled drain-en#Sense
Subsurface drain with pipe-en#Sense
Sickerdole-de#Sense
Rubble drain with piple-en#Sense