<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>9828045</termId><termName>acetilè</termName><termType>PT</termType><termNote><![CDATA[ <p>Alquí de cadena lineal de 2 àtoms de carboni, que es presenta com un gas incolor, asfixiant a concentracions elevades i molt inflamable.</p> ]]></termNote><termCreatedDate>2026-03-30 20:25:18</termCreatedDate><relation><relationType>BT</relationType><termId>9823480</termId><termName>hidrocarbur</termName><termType>PT</termType></relation></term>  </Zthes>