<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31361224</termId><termName>great-circle charts</termName><termType>PT</termType><termNote><![CDATA[ Refers to maps of large areas, often an ocean, depicted in a small scale by gnomonic projection. They are laid out to allow calculation of a great-circle route, which is the shortest course between two points on the surface of the sphere of the Earth. ]]></termNote><termCreatedDate>2026-03-30 20:37:27</termCreatedDate><relation><relationType>UF</relationType><termId>31361225</termId><termName>chart, great-circle</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31361226</termId><termName>charts, great-circle</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31361227</termId><termName>great-circle chart</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31326796</termId><termName>maps by subject type</termName><termType>PT</termType></relation></term>  </Zthes>