<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31358443</termId><termName>gyroscopes</termName><termType>PT</termType><termNote><![CDATA[ Instruments designed to demonstrate the mothion of rotating bodies, consisting essentially of a rotating wheel mounted in a ring, with its axis free to turn in any direction. With modifications or in conjunction with other equipment, these may be used as navigational devices, or to stabilize ships and mono-rail vehicles. ]]></termNote><termCreatedDate>2026-03-30 20:47:08</termCreatedDate><relation><relationType>UF</relationType><termId>31358444</termId><termName>gyroscope</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31358422</termId><termName>object movement measuring devices</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31345369</termId><termName>gyrocompasses</termName><termType>PT</termType></relation></term>  </Zthes>