<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31411869</termId><termName>ordinary portland cement</termName><termType>PT</termType><termNote><![CDATA[ A cement, without any of the distinguishing characteristics of the other types of portland cement, that is used for general construction purposes. ]]></termNote><termCreatedDate>2026-03-30 20:50:45</termCreatedDate><relation><relationType>UF</relationType><termId>31411870</termId><termName>normal portland cement</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31411871</termId><termName>ordinary portland cements</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31411872</termId><termName>portland cement, type I</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31411873</termId><termName>standard portland cement</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31411874</termId><termName>type I portland cement</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31374696</termId><termName>portland cement</termName><termType>PT</termType></relation></term>  </Zthes>