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

<http://www.irandoc.acir/onto/irandoc/NEMA0004780>
  skos:prefLabel "انتشار موج"@fa, "wave propagation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0004770> .

<http://www.irandoc.acir/onto/irandoc/NEMA0007248>
  skos:prefLabel "پرتوهای ایکس"@fa, "x rays"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004770> .

<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:related <http://www.irandoc.acir/onto/irandoc/NEMA0004770> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004770>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004773>, <http://www.irandoc.acir/onto/irandoc/NEMA0004771>, <http://www.irandoc.acir/onto/irandoc/NEMA000367>, <http://www.irandoc.acir/onto/irandoc/NEMA000354>, <http://www.irandoc.acir/onto/irandoc/NEMA0007248>, <http://www.irandoc.acir/onto/irandoc/NEMA0004775>, <http://www.irandoc.acir/onto/irandoc/NEMA0004501> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0004780> ;
  a skos:Concept, <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept> ;
  skos:prefLabel "پراش"@fa, "diffraction"@en ;
  skos:altLabel "دیفراکسیون"@fa .

<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/NEMA0004770> .

<http://www.irandoc.acir/onto/irandoc/NEMA000354>
  skos:prefLabel "خواص نوری"@fa, "optical properties"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004770> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004773>
  skos:prefLabel "تضعیف موج"@fa, "wave attenuation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004770> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004501>
  skos:prefLabel "تابش الکترومغناطیسی"@fa, "electromagnetic radiation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004770> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004771>
  skos:prefLabel "تداخل موج"@fa, "wave interference"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004770> .