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

<http://www.irandoc.acir/onto/irandoc/NEMA0007146>
  skos:prefLabel "پیشرانش الکتریکی"@fa, "electric propulsion"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007148> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004870>
  skos:prefLabel "انرژی خورشیدی"@fa, "solar energy"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007148> .

<http://www.irandoc.acir/onto/irandoc/NEMA0007150>
  skos:prefLabel "پیشرانش فضاپیما"@fa, "spacecraft propulsion"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007148> .

<http://www.irandoc.acir/onto/irandoc/NEMA0007153>
  skos:prefLabel "پیشرانش"@fa, "propulsion"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0007148> .

<http://www.irandoc.acir/onto/irandoc/NEMA0008861>
  skos:prefLabel "موتورهای موشک"@fa, "rocket engines"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007148> .

<http://www.irandoc.acir/onto/irandoc/NEMA0007148>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004870>, <http://www.irandoc.acir/onto/irandoc/NEMA0007146>, <http://www.irandoc.acir/onto/irandoc/NEMA0007150>, <http://www.irandoc.acir/onto/irandoc/NEMA0008861> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0007153> ;
  skos:prefLabel "پیشرانش خورشیدی"@fa, "solar propulsion"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .