@prefix skos: . @prefix inist: . a skos:ConceptScheme . inist:semCategory "Material / Matter / State of matter / Medium"@en, "Matériau / Matière / Etat de la matière / Milieu"@fr ; skos:inScheme ; a skos:Concept ; skos:hiddenLabel "Couche limite"@fr, "Boundary layer"@en ; skos:exactMatch , ; skos:prefLabel "boundary layer"@en, "couche limite"@fr . skos:prefLabel "Matériau / Matière / Etat de la matière / Milieu"@fr, "Material / Matter / State of matter / Medium"@en ; a skos:Collection ; skos:member .