<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31358415</termId><termName>radiant energy measuring devices</termName><termType>PT</termType><termNote><![CDATA[ Devices used for measuring energy that travels as electromagnetic waves. ]]></termNote><termCreatedDate>2026-03-30 20:36:40</termCreatedDate><relation><relationType>UF</relationType><termId>31358416</termId><termName>measuring devices, radiant energy</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31358417</termId><termName>radiant energy measuring device</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31325907</termId><termName>elemental forces measuring devices</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31398451</termId><termName>actinometers</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31398453</termId><termName>radiometers</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31398455</termId><termName>spectrometers</termName><termType>PT</termType></relation></term>  </Zthes>