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mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_es">planta de tratamiento de aguas residuales</topic></authority><related type="narrower"><topic>settling tanks (traducció pendent)</topic></related><related type="broader"><topic>plantas de tratamiento de aguas</topic></related><variant type="other"><topic>estación depuradora</topic></variant><variant type="other"><topic>plantas de tratamiento de aguas residuales</topic></variant></mads>