<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31351193</termId><termName>vacuum chambers</termName><termType>PT</termType><termNote><![CDATA[ A chamber designed to create a vacuum environment by removal of air and gasses with a pump. In conservation science practice, vacuum chambers are used for such purposes as drying, degassing, fumigation, resin impregnation.  ]]></termNote><termCreatedDate>2026-03-30 20:34:45</termCreatedDate><relation><relationType>UF</relationType><termId>31351194</termId><termName>chambers, vacuum</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31351195</termId><termName>vacuum chamber</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31323761</termId><termName>rooms and spaces by property</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31327469</termId><termName>vacuum</termName><termType>PT</termType></relation></term>  </Zthes>