<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31441048</termId><termName>hydroelectric dams</termName><termType>PT</termType><termNote><![CDATA[ Dams built on rivers to harness the energy of waterpower to produce electricity. ]]></termNote><termCreatedDate>2026-03-30 20:58:53</termCreatedDate><relation><relationType>UF</relationType><termId>31441049</termId><termName>power-dams</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31441050</termId><termName>dams, hydro-electric</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31441051</termId><termName>dams, hydroelectric</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31441052</termId><termName>dams, hydroelectrical</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31441053</termId><termName>dams, power</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31441054</termId><termName>hydro-electric dams</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31441055</termId><termName>hydroelectric dam</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31441056</termId><termName>hydroelectrical dams</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31441057</termId><termName>power dams</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31415432</termId><termName>dams by function</termName><termType>PT</termType></relation></term>  </Zthes>