<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31352640</termId><termName>engines</termName><termType>PT</termType><termNote><![CDATA[ Machines for producing a physical effect, usually the conversion of energy into motion or propulsion. ]]></termNote><termCreatedDate>2026-03-30 20:35:10</termCreatedDate><relation><relationType>UF</relationType><termId>31352641</termId><termName>engine</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31324477</termId><termName>power producing equipment</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31384649</termId><termName>animal-powered engines</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31384652</termId><termName>steam engines</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31384657</termId><termName>gas engines</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31384662</termId><termName>diesel engines</termName><termType>PT</termType></relation></term>  </Zthes>