<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31301912</termId><termName>microcracks</termName><termType>PT</termType><termNote><![CDATA[ Microscopic cracks typically less than one millimeter in width and a few centimeters long. ]]></termNote><termCreatedDate>2026-03-30 20:21:10</termCreatedDate><relation><relationType>UF</relationType><termId>31301913</termId><termName>microcrack</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31298262</termId><termName>cracks</termName><termType>PT</termType></relation></term>  </Zthes>