<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31459572</termId><termName>xenon lamps</termName><termType>PT</termType><termNote><![CDATA[ Lamps in which light is produced by an electric arc between two electrodes in a quartz bulb filled with xenon gas. They give off a constant high intensity light and are used in motion picture projection, flash photography, and serve as light sources in accelerated aging chambers. ]]></termNote><termCreatedDate>2026-03-30 21:03:42</termCreatedDate><relation><relationType>UF</relationType><termId>31459573</termId><termName>lamps, xenon</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31459574</termId><termName>xenon arc lamps</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31459575</termId><termName>xenon lamp</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31441577</termId><termName>high-intensity discharge lamps</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31320531</termId><termName>xenon</termName><termType>PT</termType></relation></term>  </Zthes>