@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002974>
  skos:altLabel "تاری‌سنجی"@fa ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0008133> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0002977> ;
  skos:prefLabel "چگالی‌سنجی"@fa, "densitometry"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA0002977>
  skos:prefLabel "نورسنجی"@fa, "photometry"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0002974> .

<http://www.irandoc.acir/onto/irandoc/NEMA0008133>
  skos:prefLabel "چگالی (جرم)"@fa, "density (mass)"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002974> .