<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31410581</termId><termName>tribology</termName><termType>PT</termType><termNote><![CDATA[ Interdisciplinary science and technology of interactive sliding surfaces. The three chief branches of tribology are lubrication, friction, and wear. ]]></termNote><termCreatedDate>2026-03-30 20:50:24</termCreatedDate><relation><relationType>BT</relationType><termId>31372729</termId><termName>materials science</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31298265</termId><termName>wear</termName><termType>PT</termType></relation></term>  </Zthes>