<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31304682</termId><termName>deionization</termName><termType>PT</termType><termNote><![CDATA[ The removal of ions from a solution by ion exchange. ]]></termNote><termCreatedDate>2026-03-30 20:21:56</termCreatedDate><relation><relationType>UF</relationType><termId>31304683</termId><termName>deionisation</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31304684</termId><termName>deionized</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31304685</termId><termName>deionizing</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31298688</termId><termName>physicochemical processes</termName><termType>PT</termType></relation></term>  </Zthes>