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

<http://www.irandoc.acir/onto/irandoc/NEMA000366>
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA000367> ;
  skos:prefLabel "نورشناسی هندسی"@fa, "geometrical optics"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0006825>, <http://www.irandoc.acir/onto/irandoc/NEMA0004032>, <http://www.irandoc.acir/onto/irandoc/NEMA0004775>, <http://www.irandoc.acir/onto/irandoc/NEMA0004766>, <http://www.irandoc.acir/onto/irandoc/NEMA0004028> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA000365> .

<http://www.irandoc.acir/onto/irandoc/NEMA0006825>
  skos:prefLabel "پرتوها"@fa, "beams (radiation)"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA000366> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004766>
  skos:prefLabel "انعکاس"@fa, "reflection"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA000366> .

<http://www.irandoc.acir/onto/irandoc/NEMA000367>
  skos:prefLabel "نورشناسی"@fa, "optics"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA000366> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004775>
  skos:prefLabel "شکست (فیزیک)"@fa, "refraction"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA000366> .

<http://www.irandoc.acir/onto/irandoc/NEMA000365>
  skos:prefLabel "فیزیک بینایی"@fa, "physics of eyesight"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA000366> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004028>
  skos:prefLabel "عدسی‌های نوری"@fa, "optical lenses"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA000366> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004032>
  skos:prefLabel "تجهیزات نوری"@fa, "optical equipment"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA000366> .