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

<http://www.irandoc.acir/onto/irandoc/insp0005035>
  skos:prefLabel "Optical element"@en, "عنصر نوری"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0004986> .

<http://www.irandoc.acir/onto/irandoc/insp0005263>
  skos:prefLabel "Waveguide attenuator"@en, "تضعیف‌کننده موج‌بر"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004986> .

<http://www.irandoc.acir/onto/irandoc/insp0004986>
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0005035>, <http://www.irandoc.acir/onto/irandoc/insp0005264> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004962>, <http://www.irandoc.acir/onto/irandoc/insp0005263>, <http://www.irandoc.acir/onto/irandoc/insp0001200> ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:prefLabel "تضعیف‌کننده نوری"@fa, "Optical attenuator"@en ;
  skos:altLabel "variable optical attenuator"@en .

<http://www.irandoc.acir/onto/irandoc/insp0004962>
  skos:prefLabel "Optical losses"@en, "تلفات نوری"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004986> .

<http://www.irandoc.acir/onto/irandoc/insp0005264>
  skos:prefLabel "Attenuator"@en, "تضعیف‌کننده"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0004986> .

<http://www.irandoc.acir/onto/irandoc/insp0001200>
  skos:prefLabel "Optical communication equipment"@en, "تجهیزات ارتباط نوری"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004986> .