<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31363168</termId><termName>megahertz</termName><termType>PT</termType><termNote><![CDATA[ Unit of frequency representing one million cycles per second (hertz). It is used mostly to measure the transmission speed of electronic devices such as personal computers, particularly CPU speed. ]]></termNote><termCreatedDate>2026-03-30 20:38:00</termCreatedDate><relation><relationType>UF</relationType><termId>31363169</termId><termName>MHz</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31333949</termId><termName>size/dimension units for frequency</termName><termType>PT</termType></relation></term>  </Zthes>