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

<http://www.irandoc.acir/onto/irandoc/CHEM0002620>
  skos:broader <http://www.irandoc.acir/onto/irandoc/CHEM0002621> ;
  skos:prefLabel "سیستم تلمبه‌زنی با فشار ثابت"@fa, "constant pressure pumping system"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CHEM0002621>
  skos:prefLabel "سیستم تلمبه‌زنی"@fa, "pumping system"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CHEM0002620> .