drive-in diffusion cycle

  • 71TOURISME — Le tourisme est l’expression d’une mobilité humaine et sociale fondée sur un excédent budgétaire susceptible d’être consacré au temps libre passé à l’extérieur de la résidence principale. Il implique au moins un découcher, c’est àdire une nuit… …

    Encyclopédie Universelle

  • 72Ecology — For other uses, see Ecology (disambiguation). Ecology …

    Wikipedia

  • 73HVAC — may also stand for High voltage alternating current. See also: Glossary of HVAC HVAC systems use ventilation air ducts installed throughout a building that supply conditioned air to a room through rectangular or round outlet vents, called… …

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  • 74Marine propulsion — For the operation of ship engines, see Engine department (ship). For the design of ships, see Naval architecture. A view of a ship s engine room Marine propulsion is the mechanism or system used to generate thrust to move a ship or boat across… …

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  • 75global warming — an increase in the earth s average atmospheric temperature that causes corresponding changes in climate and that may result from the greenhouse effect. [1975 80] * * * Potential increase in global average surface temperatures resulting from… …

    Universalium

  • 76pump — pump1 pumpable, adj. pumpless, adj. pumplike, adj. /pump/, n. 1. an apparatus or machine for raising, driving, exhausting, or compressing fluids or gases by means of a piston, plunger, or set of rotating vanes. 2. Engin., Building Trades. a shore …

    Universalium

  • 77publishing, history of — Introduction       an account of the selection, preparation, and marketing of printed matter from its origins in ancient times to the present. The activity has grown from small beginnings into a vast and complex industry responsible for the… …

    Universalium

  • 78Crank (mechanism) — A crank is an arm attached at right angles to a rotating shaft by which reciprocating motion is imparted to or received from the shaft. It is used to change circular into reciprocating motion, or reciprocating into circular motion. The arm may be …

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  • 79Dynamic Systems Development Method — (DSDM) is a software development approach originally based upon the Rapid Application Development (RAD) methodology. DSDM is an iterative and incremental approach that emphasizes continuous user involvement. Its goal is to deliver software… …

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  • 80Nuclear power in the United States — For a comprehensive list of U.S. plants, see List of nuclear reactors. NRC regions and locations of nuclear reactors, 2008 Main article: Nuclear power As of 2008, nuclear power in the United States is provided by 104 commercial reactors (69 …

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