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M982 Excalibur
The M982 Excalibur is a 155 mm GPS-guided, extended-range artillery shell used by the US Army and allied armies, accurate to under 10 meters at ranges up to 70 km.
Ma-Guang Crude Oil Pipeline
The Ma-Guang Crude Oil Pipeline (马广线) is a 173 km crude oil pipeline in Guangdong, China, linking Daya Bay to the Guangzhou Petrochemical refinery since 1997.
Ma'aden
Ma'aden, formally the Saudi Arabian Mining Company, is a Saudi mining and metals company formed by royal decree in 1997, majority owned by the Public Investment Fund.
Ma'anshan Dangtu power station
Ma'anshan Dangtu power station (大唐马鞍山当涂发电厂) is a coal-fired power station in Dangtu County, Ma'anshan, Anhui, China, with two 660 MW supercritical units commissioned in December 2008.
Ma'anshan power station
Ma'anshan power station is a coal-fired power station of at least 2,640 MW in Ma'anshan, Anhui Province, China, founded in 1947 and known as the "Flower of Jiangnan."
Maanshan Iron and Steel
Maanshan Iron and Steel, known as Masteel or Magang, is a Chinese steel company in Maanshan, Anhui, producing special steel, railway wheels and axles, and plates.
Maanshan nuclear power plant
Maanshan nuclear power plant (核三厂) is a two-unit nuclear power station in Pingtung County, Taiwan, whose reactors, the last operating in Taiwan, shut down in July 2024 and May 2025.
Maastricht Aachen Airport
Maastricht Aachen Airport, also known as Maastricht Airport or Aachen Airport, is a regional airport near Beek in the Dutch province of Limburg, serving the cities of Maastricht and Aachen.
Maastricht Upper Area Control Centre
The Maastricht Upper Area Control Centre (MUAC) is a non-profit air navigation provider run by EUROCONTROL, controlling upper airspace over Belgium, Germany, Luxembourg, and the Netherlands since 1972.
Maasvlakte converter station
The Maasvlakte converter station is the Dutch terminal of the BritNed interconnector at Rotterdam, converting power between the Dutch grid and the subsea link to Great Britain.
Maasvlakte II
Maasvlakte II is a 2,000-hectare reclaimed port and industrial area of the Port of Rotterdam, built between 2008 and 2013 as a westward extension into the North Sea.
Maasvlakte Power Station (Uniper)
The Maasvlakte Power Station is a Uniper power plant in the port of Rotterdam, Netherlands, centered on the coal- and biomass-fired MPP3, which opened in 2016.
Mabe (company)
Mabe is a Mexican manufacturer of large home appliances such as refrigerators, stoves, and washing machines, founded in 1946 and a leading white goods producer in Latin America.
Mabrouk Northeast Oil and Gas Field
Mabrouk Northeast, also written Mabrouk North East, is an onshore natural gas and condensate field in central Oman's Block 10, discovered by Petroleum Development Oman in 2017.
Mac (computer)
The Mac, originally sold as the Macintosh, is a family of personal computers from Apple, introduced in 1984 and known for pioneering the mouse-driven graphical interface.
MAC address
A MAC address, or media access control address, is the 48-bit identifier that Ethernet and Wi-Fi adapters use to send frames on a local network.
Mac Mini
Mac mini, also sold as the Macintosh mini, is Apple's smallest and least expensive desktop computer, introduced in 2005 for $499 and sold without a display, keyboard, or mouse.
Mac OS 9
Mac OS 9 is the ninth major release of the classic Macintosh operating system from Apple Computer, released October 23, 1999, and the last before Mac OS X.
Mac OS X 10.0
Mac OS X 10.0, codenamed Cheetah, is the first full commercial release of Apple's Mac OS X, released on 24 March 2001 and replacing the classic Mac OS.
Mac OS X Leopard
Mac OS X Leopard (version 10.5) is the sixth major release of Apple's Mac OS X operating system, released in October 2007 with over 300 new features.
Mac OS X Public Beta
Mac OS X Public Beta, also known as OS X Public Beta, was a pre-release version of Apple's Macintosh operating system, sold for $29.95 in September 2000.
Mac OS X Snow Leopard
Mac OS X Snow Leopard (version 10.6) is the seventh major release of Apple's Mac OS X, shipped in September 2009 as a refinement-focused upgrade.
Mac OS X Tiger
Mac OS X Tiger (version 10.4) is the fifth major release of Apple's Mac OS X, released in 2005. It introduced Spotlight search, Dashboard widgets, and 64-bit application support.
Mac Pro
The Mac Pro, also known as the Apple Mac Pro, was Apple's high-end, expandable desktop workstation, sold from 2006 to 2026 in four major designs and discontinued in March 2026.
Mac Studio
The Mac Studio is a compact Apple desktop workstation introduced in March 2022, positioned between the Mac mini and Mac Pro for professional creative work.
Mac Van Valkenburg
Mac Van Valkenburg was an American electrical engineer and University of Illinois professor whose textbooks on circuit theory shaped how the subject was taught worldwide.
MAC-10
The MAC-10, also known as the Ingram M10, is a compact blowback-operated submachine gun designed by Gordon B. Ingram in 1964, first series-produced by the Military Armament Corporation of Georgia in 1970.
MAC-11
The Ingram MAC-11, also called the Ingram Model 11, is a compact .380 ACP submachine gun designed by Gordon B. Ingram, with a cyclic rate of about 1,200 rounds per minute.
Macadam
Macadam is a road construction method using compacted layers of broken stone on a raised, convex, well-drained roadbed, with no binder, developed by Scottish engineer John Loudon McAdam.
Macagua 2 hydroelectric plant
Macagua 2, also known as Antonio José de Sucre 2, is a hydroelectric plant on the Río Caroní at San Félix, Venezuela, inaugurated in January 1997 by President Rafael Caldera.