<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31459125</termId><termName>purlins</termName><termType>PT</termType><termNote><![CDATA[ The horizontal timbers laid across the principal rafters and supporting the common rafters in a roof. Purlins differ from beams in roof construction in that purlins usually do not support any other members, instead supporting loads from the roof deck. ]]></termNote><termCreatedDate>2026-03-30 21:03:35</termCreatedDate><relation><relationType>UF</relationType><termId>31459126</termId><termName>purlin</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31459127</termId><termName>purlines</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31459128</termId><termName>purlins, roof</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31459129</termId><termName>roof purlins</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31440459</termId><termName>horizontal roof frame components</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31472906</termId><termName>gōpānasī</termName><termType>PT</termType></relation></term>  </Zthes>