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

<http://www.irandoc.acir/onto/irandoc/insp000662>
  skos:prefLabel "Hvdc power transmission"@en, "انتقال توان جریان متناوب فشار قوی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp000663> .

<http://www.irandoc.acir/onto/irandoc/insp000676>
  skos:prefLabel "Power transmission"@en, "انتقال نیرو"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp000663> .

<http://www.irandoc.acir/onto/irandoc/insp000663>
  skos:altLabel "direct current power transmission"@en ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp000662> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp000676> ;
  skos:prefLabel "Dc power transmission"@en, "انتقال ولتاژ جریان مستقیم"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .