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

<http://www.irandoc.acir/onto/irandoc/EIT0004578>
  skos:prefLabel "تقویت‌کننده (الکترونیکی)"@fa, "amplifier (electronic)"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/EIT0004561> .

<http://www.irandoc.acir/onto/irandoc/EIT0004561>
  skos:broader <http://www.irandoc.acir/onto/irandoc/EIT0004578> ;
  skos:prefLabel "تقویت‌کننده میان‌بسامد"@fa, "intermediate frequency amplifier"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .