<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>4440</termId><termName>CAMBIADORES DE FRECUENCIA</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>CAMBIADORES DE FRECUENCIA</termSortkey><termCreatedDate>CAMBIADORES DE FRECUENCIA</termCreatedDate><termModifiedDate>2015-02-05 06:32:28</termModifiedDate><relation><relationType>UF</relationType><termId>28002</termId><termName>Convertidores de frecuancia</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>4436</termId><termName>MOTORES ELECTRICOS</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>5281</termId><termName>CONVERTIDORES DE CORRIENTE ELECTRICA</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>28001</termId><termName>SINTETIZADORES DE FRECUENCIA</termName><termType>PT</termType></relation></term>  </Zthes>