<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31301268</termId><termName>brittleness</termName><termType>PT</termType><termNote><![CDATA[ The property of being hard and rigid with little tensile strength, tending to break readily with a comparatively smooth fracture. ]]></termNote><termCreatedDate>2026-03-30 20:20:56</termCreatedDate><relation><relationType>UF</relationType><termId>31301269</termId><termName>brittle</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31298106</termId><termName>mechanical properties</termName><termType>PT</termType></relation></term>  </Zthes>