<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31325805</termId><termName>scuba regulators</termName><termType>PT</termType><termNote><![CDATA[ Equipment used to assist divers with breathing when underwater by regulating the pressure of one's oxygen; usually consists of several tubes, a valve, and a pressure regulator. ]]></termNote><termCreatedDate>2026-03-30 20:27:49</termCreatedDate><relation><relationType>UF</relationType><termId>31325806</termId><termName>regulators, scuba</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31325807</termId><termName>scuba regulator</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31307798</termId><termName>temporary alphabetical list: recreational artifacts</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31325708</termId><termName>diving masks</termName><termType>PT</termType></relation></term>  </Zthes>