motor-operated screw

  • 51List of British words not widely used in the United States — Differences between American and British English American English …

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  • 52Science and invention in Birmingham — Birmingham is the second largest city in the United Kingdom. It is one of the country s principal industrial centres and has an impressive history of industrial and scientific innovation.16th century1547: Although no record is kept to indicate… …

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  • 53machine tool — machine tooled, adj. a power operated machine, as a lathe, used for general cutting and shaping of metal and other substances. [1860 65] * * * Stationary, power driven machine used to cut, shape, or form materials such as metal and wood. Machine… …

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  • 54commercial fishing — Introduction  the taking of fish and other seafood and resources from oceans, rivers, and lakes for the purpose of marketing them.       Fishing is one of the oldest employments of humankind. Ancient heaps of discarded mollusk shells (shell… …

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  • 55Robotics — is the science and technology of robots, and their design, manufacture, and application.cite web |url=http://mw1.merriam webster.com/dictionary/Robotics |title=Definition of robotics Merriam Webster Online Dictionary |accessdate=2007 08 26… …

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  • 56Citroën DS — Manufacturer Citroën Also called Citroën ID Production 1955–1975 Assembly …

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  • 57Landing Ship, Tank — A Canadian LST off loads an M4 Sherman during the Allied invasion of Sicily in 1943. Landing Ship, Tank (LST) was the military designation for naval vessels created during World War II to support amphibious operations by carrying significant… …

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  • 58steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …

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  • 59Prosthesis — For other uses, see Prosthesis (disambiguation). Not to be confused with Orthotic. A man with two prosthetic arms playing table football …

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  • 60Dust collector — Two rooftop dust collectors in Pristina, Kosovo A dust collector is a system used to enhance the quality of air released from industrial and commercial processes by collecting dust and other impurities from air or gas. Designed to handle heavy… …

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