<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">Archimedean screws</topic></authority><related type="broader"><topic>pumps</topic></related><variant type="other"><topic>Archimedean screw</topic></variant><variant type="other"><topic>Archimedes&apos; screw</topic></variant><variant type="other"><topic>archimedean screw</topic></variant> <note xml:lang="en"><![CDATA[ Screw-shaped surfaces mounted inside a pipe, used for raising water. These are among the earliest form of hydraulic machine used for lifting water from a low-lying body of water onto another surface, often for irrigation. In a contemporary context, Archimedean screw pumps are widely used in wastewater treatment plants and for dewatering low-lying regions. ]]></note></mads>