<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31449702</termId><termName>meteorological balloons</termName><termType>PT</termType><termNote><![CDATA[ Balloons used to carry meteorological instruments, especially radiosondes, aloft; for balloons carrying self-registering instruments aloft for general atmospheric research, use "sounding balloons." ]]></termNote><termCreatedDate>2026-03-30 21:01:05</termCreatedDate><relation><relationType>UF</relationType><termId>31449703</termId><termName>balloon, weather</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31449704</termId><termName>balloons, meteorological</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31449705</termId><termName>balloons, weather</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31449706</termId><termName>meteorological balloon</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31449707</termId><termName>weather balloon</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31449708</termId><termName>weather balloons</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31426120</termId><termName>balloons</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31410607</termId><termName>meteorology</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31449709</termId><termName>sounding balloons</termName><termType>PT</termType></relation></term>  </Zthes>