reflektion (fysik)
type: Concept
preferred label: reflection @en
preferred label: heijastuminen @fi
related: eko

eko
type: Concept
broader: fysikaliska fenomen
related: reflektion (fysik)
related: ljud (fysik)
preferred label: echo @en
preferred label: kaiku @fi
in scheme: conceptscheme

fysikaliska fenomen
type: Concept
preferred label: physical phenomena @en
preferred label: fysikaaliset ilmiöt @fi
narrower: eko

ljud (fysik)
type: Concept
preferred label: sound @en
preferred label: ääni @fi
related: eko