<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31352190</termId><termName>slag heaps</termName><termType>PT</termType><termNote><![CDATA[ Piles of fused refuse or dross separated from metal in the process of smelting; also refers to piles of unwanted tailings or refuse that are the by-products of mining ore, coal, or other substances. Piles of fused refuse or dross separated from metal in the process of smelting; also refers to piles of unwanted tailings or refuse that are the by-products of mining ore, coal, or other substances. ]]></termNote><termCreatedDate>2026-03-30 20:35:02</termCreatedDate><relation><relationType>UF</relationType><termId>31352191</termId><termName>heaps, slag</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31352192</termId><termName>slag heap</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31352193</termId><termName>slag-heaps</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31324220</termId><termName>dumps</termName><termType>PT</termType></relation></term>  </Zthes>