<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31341508</termId><termName>thermal expansion</termName><termType>PT</termType><termNote><![CDATA[ The change in length or volume of a material or body due to change in temperature. ]]></termNote><termCreatedDate>2026-03-30 20:32:05</termCreatedDate><relation><relationType>UF</relationType><termId>31341509</termId><termName>expansion, thermal</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31317753</termId><termName>expansion</termName><termType>PT</termType></relation></term>  </Zthes>