<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31398091</termId><termName>time balls</termName><termType>PT</termType><termNote><![CDATA[ Balls that are mounted on vertical poles or rods, often surmounting towers, and that move downward at predermined times to provide precise signals from a distance. ]]></termNote><termCreatedDate>2026-03-30 21:01:16</termCreatedDate><relation><relationType>UF</relationType><termId>31398092</termId><termName>time ball</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31482818</termId><termName>timeball</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31427913</termId><termName>clocks by form</termName><termType>PT</termType></relation></term>  </Zthes>