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

<http://www.irandoc.acir/onto/irandoc/INSP0009407>
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0007102>, <http://www.irandoc.acir/onto/irandoc/INSP0007244>, <http://www.irandoc.acir/onto/irandoc/INSP0009453>, <http://www.irandoc.acir/onto/irandoc/INSP0005231>, <http://www.irandoc.acir/onto/irandoc/INSP0001915>, <http://www.irandoc.acir/onto/irandoc/INSP0001918> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/INSP0009410> ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:prefLabel "ساعت اتمی"@fa, "atomic clock"@en ;
  skos:altLabel "maser clock"@en .

<http://www.irandoc.acir/onto/irandoc/INSP0007244>
  skos:prefLabel "اندازه‌گیری زمان"@fa, "time measurement"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0009407> .

<http://www.irandoc.acir/onto/irandoc/INSP0009453>
  skos:prefLabel "frequency meter"@en, "بسامدسنج"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0009407> .

<http://www.irandoc.acir/onto/irandoc/INSP0001915>
  skos:prefLabel "frequency standard"@en, "استاندارد بسامد"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0009407> .

<http://www.irandoc.acir/onto/irandoc/INSP0007102>
  skos:prefLabel "اندازه‌گیری بسامد"@fa, "frequency measurement"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0009407> .

<http://www.irandoc.acir/onto/irandoc/INSP0005231>
  skos:prefLabel "maser"@en, "میزر"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0009407> .

<http://www.irandoc.acir/onto/irandoc/INSP0001918>
  skos:prefLabel "measurement standard"@en, "استاندارد اندازه‌گیری"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0009407> .

<http://www.irandoc.acir/onto/irandoc/INSP0009410>
  skos:prefLabel "clock"@en, "ساعت"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/INSP0009407> .