filling system of navigation lock en

  • 1Lock (water transport) — Canal lock and lock keeper s cottage on the Aylesbury Arm of the Grand Union Canal at Marsworth in Hertfordshire, England …

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  • 2canals and inland waterways — ▪ waterway Introduction       natural or artificial waterways used for navigation, crop irrigation, water supply, or drainage.       Despite modern technological advances in air and ground transportation, inland waterways continue to fill a vital …

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  • 3Ford Escape — Infobox Automobile name = Ford Escape manufacturer = Ford Motor Company|class = Crossover (automobile); Hybrid vehicle production = 2001 presentbody style = 4 door SUV related = Mercury Mariner Mazda Tribute layout = Front engine, front wheel… …

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  • 4harbours and sea works — Introduction harbour also spelled  harbor        any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… …

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  • 5Computer keyboard — A key being pressed on a computer keyboard. In computing, a keyboard is a typewriter style keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. Following the decline of punch cards and paper… …

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  • 6dam — dam1 /dam/, n., v., dammed, damming. n. 1. a barrier to obstruct the flow of water, esp. one of earth, masonry, etc., built across a stream or river. 2. a body of water confined by a dam. 3. any barrier resembling a dam. v.t. 4. to furnish with a …

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  • 7Dam — /dam, dahm/, n. (Carl Peter) Henrik /kahrl pee ter hen rik/; Dan. /kahrddl pay teuhrdd hen rddik/, 1895 1976, Danish biochemist: Nobel prize for medicine 1943. * * * I Barrier built across a stream, river, or estuary to conserve water for such… …

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  • 8Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …

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  • 9List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …

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  • 10Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …

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