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Global Positioning System
(Encyclopedia) Global Positioning System: see navigation satellite.ring, mathematical system
(Encyclopedia) ring, in mathematics, system consisting of a set R of elements and two binary operations, such that addition makes R a commutative group and multiplication is associative and…pitot static system
(Encyclopedia) pitot static systempitot static systempētōˈ [key], device for measuring the rate at which a fluid flows. Among the principal applications of the device are an airspeed indicator for…peripheral nervous system
(Encyclopedia) peripheral nervous system: see nervous system.parasympathetic nervous system
(Encyclopedia) parasympathetic nervous system: see nervous system.Space Transportation System
(Encyclopedia) Space Transportation System, official designation for the U.S. space shuttle.European Monetary System
(Encyclopedia) European Monetary System, arrangement by which most nations of the European Union (EU) linked their currencies to prevent large fluctuations relative to one another. It was organized…equatorial coordinate system
(Encyclopedia) CE5 Equatorial coordinate system equatorial coordinate system, the most commonly used astronomical coordinate system for indicating the positions of stars or other celestial…altazimuth coordinate system
(Encyclopedia) altazimuth coordinate systemaltazimuth coordinate systemăltăzˈəməth [key] or horizon coordinate system, astronomical coordinate system in which the position of a body on the celestial…Federal Reserve System
(Encyclopedia) Federal Reserve System, central banking system of the United States. Established in 1913, it began to operate in Nov., 1914. Its setup, although somewhat altered since its…Trending
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