<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31348767</termId><termName>shutters</termName><termType>PT</termType><termNote><![CDATA[ Mechanisms used in cameras that allow light to pass through an aperture and expose a frame of film. ]]></termNote><termCreatedDate>2026-03-30 20:34:07</termCreatedDate><relation><relationType>UF</relationType><termId>31348768</termId><termName>camera shutter</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31348769</termId><termName>shutter</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31322938</termId><termName>camera components</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31378750</termId><termName>focal-plane shutters</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31378755</termId><termName>between-the-lens shutters</termName><termType>PT</termType></relation></term>  </Zthes>