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

<http://www.irandoc.acir/onto/irandoc/NEMA0004027>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0006992>, <http://www.irandoc.acir/onto/irandoc/NEMA0005861>, <http://www.irandoc.acir/onto/irandoc/NEMA0004028>, <http://www.irandoc.acir/onto/irandoc/NEMA000354>, <http://www.irandoc.acir/onto/irandoc/NEMA0004034> ;
  a skos:Concept, <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0004032> ;
  skos:prefLabel "optical glass"@en, "شیشه نوری"@fa ;
  skos:altLabel "VIDRIO"@en .

<http://www.irandoc.acir/onto/irandoc/NEMA0005861>
  skos:prefLabel "صنعت شیشه‌سازی"@fa, "glass industry"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004027> .

<http://www.irandoc.acir/onto/irandoc/NEMA0006992>
  skos:prefLabel "بینایی‌سنجی"@fa, "optometry"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004027> .

<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/NEMA0004027> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004034>
  skos:prefLabel "لیزرها"@fa, "lasers"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004027> .

<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/NEMA0004027> .

<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:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0004027> .