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

<http://www.irandoc.acir/onto/irandoc/insp0011938>
  skos:altLabel "twt"@en ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0011936>, <http://www.irandoc.acir/onto/irandoc/insp0011937> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0005246> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0011939> ;
  skos:prefLabel "Travelling wave tube"@en, "لامپ موج رونده"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0005246>
  skos:prefLabel "Travelling wave amplifier"@en, "تقویت‌کننده موج رونده"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0011938> .

<http://www.irandoc.acir/onto/irandoc/insp0011936>
  skos:prefLabel "Backward wave tube"@en, "لامپ موج پس‌سو"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0011938> .

<http://www.irandoc.acir/onto/irandoc/insp0011939>
  skos:prefLabel "Electron wave tube"@en, "لامپ موج الکترونی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0011938> .

<http://www.irandoc.acir/onto/irandoc/insp0011937>
  skos:prefLabel "Slow wave structure"@en, "ساختار موج تدریجی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0011938> .