<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31361607</termId><termName>hyperbolas</termName><termType>PT</termType><termNote><![CDATA[ Plane curves of two equal branches, produced when cones are cut by planes that make a larger angle with the base than the side of the cone. ]]></termNote><termCreatedDate>2026-03-30 20:37:33</termCreatedDate><relation><relationType>UF</relationType><termId>31361608</termId><termName>hyperbola</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31327319</termId><termName>plane figures</termName><termType>PT</termType></relation></term>  </Zthes>