<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31473396</termId><termName>ore treatment plants</termName><termType>PT</termType><termNote><![CDATA[ Facilities used for improving the metal content of ore by concentration. ]]></termNote><termCreatedDate>2026-03-30 21:07:23</termCreatedDate><relation><relationType>UF</relationType><termId>31473397</termId><termName>ore treatment plant</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31473398</termId><termName>plants, ore treatment</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31460224</termId><termName>processing plants</termName><termType>PT</termType></relation></term>  </Zthes>