<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31319700</termId><termName>cellulose nitrate film</termName><termType>PT</termType><termNote><![CDATA[ A flexible support or base used for photographic negatives and motion picture film from 1890 to the 1950s. It is made of cellulose nitrate with camphor as a plasticizer; it is unstable and flammable. ]]></termNote><termCreatedDate>2026-03-30 20:26:09</termCreatedDate><relation><relationType>UF</relationType><termId>31319701</termId><termName>celluloid</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31305795</termId><termName>film</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31371024</termId><termName>nitrocellulose</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31431286</termId><termName>nitrate cels</termName><termType>PT</termType></relation></term>  </Zthes>