<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31355336</termId><termName>tuning forks</termName><termType>PT</termType><termNote><![CDATA[ Tempered steel instruments consisting of a stem with two prongs, producing a musical tone of definite constant pitch when struck and serving as a standard as when tuning musical instruments and performing acoustical experiments. ]]></termNote><termCreatedDate>2026-03-30 20:35:48</termCreatedDate><relation><relationType>UF</relationType><termId>31355337</termId><termName>fork, tuning</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31355338</termId><termName>forks, tuning</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31355339</termId><termName>tuning fork</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31355340</termId><termName>tuning-forks</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31325032</termId><termName>tuning devices</termName><termType>PT</termType></relation></term>  </Zthes>