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mads.xsd"><authority><topic authority="http://roble.intecca.uned.es/tematres/lem/">Centrales eléctricas</topic></authority><related type="narrower"><topic>Centrales hidroeléctricas</topic></related><related type="narrower"><topic>Centrales solares</topic></related><related type="narrower"><topic>Centrales térmicas</topic></related><related type="narrower"><topic>Centrales eólicas</topic></related><related type="narrower"><topic>Centrales nucleares</topic></related><related type="other"><topic>Generadores eléctricos</topic></related><related type="other"><topic>Energía eléctrica-Producción</topic></related><related type="other"><topic>Industria eléctrica</topic></related><related type="other"><topic>Transformadores eléctricos</topic></related><variant type="other"><topic>Plantas eléctricas</topic></variant><variant type="other"><topic>Energía eléctrica-Centrales</topic></variant></mads>