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

<http://www.irandoc.acir/onto/irandoc/insp0012716>
  skos:prefLabel "Electromagnetic wave diffraction"@en, "پراش موج الکترومغناطیسی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0012714> .

<http://www.irandoc.acir/onto/irandoc/insp0012714>
  skos:altLabel "ptd"@en ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004913>, <http://www.irandoc.acir/onto/irandoc/insp0012710> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0012716> ;
  skos:prefLabel "Physical theory of diffraction"@en, "نظریه فیزیکی پراش"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0004913>
  skos:prefLabel "Physical optics"@en, "نورشناسی فیزیکی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0012714> .

<http://www.irandoc.acir/onto/irandoc/insp0012710>
  skos:prefLabel "Geometrical theory of diffraction"@en, "نظریه هندسی پراش"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0012714> .