@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/NEMA0004777> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004777>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA000803>, <http://www.irandoc.acir/onto/irandoc/NEMA0001808> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0004780> ;
  skos:prefLabel "فازهای موج"@fa, "wave phases"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA000803>
  skos:prefLabel "زاویه‌ها"@fa, "angles"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004777> .

<http://www.irandoc.acir/onto/irandoc/NEMA0001808>
  skos:prefLabel "تاخیر زمانی"@fa, "time lag"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004777> .