<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31459469</termId><termName>diaphragm earth dams</termName><termType>PT</termType><termNote><![CDATA[ Earth dams having a central core of thick masonry or concrete extending into the pervious underground strata and acting as a barrier against seeping water, while the surrounding banks of earth and rock fill provide stability. ]]></termNote><termCreatedDate>2026-03-30 21:03:40</termCreatedDate><relation><relationType>UF</relationType><termId>31459470</termId><termName>dams, diaphragm earth</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31459471</termId><termName>diaphragm dams</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31459472</termId><termName>diaphragm earth dam</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31441062</termId><termName>earth dams</termName><termType>PT</termType></relation></term>  </Zthes>