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parallel+flanges

См. также в других словарях:

  • I-beam — I beams (also known as W beams or double T esp. in Polish and German) are beams with an I or H shaped cross section ( W stands for wide flange ). The horizontal elements are flanges, while the vertical element is the web. The Euler Bernoulli beam …   Wikipedia

  • Vacuum pump — A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The vacuum pump was invented in 1650 by Otto von Guericke. Types Pumps can be broadly categorized according to three… …   Wikipedia

  • Railroad switch — For other uses, see Switch (disambiguation). A right hand railroad switch with point indicator pointing to right …   Wikipedia

  • Bicycle wheel — For the Marcel Duchamp installation, see Bicycle Wheel. The front wheel from a racing bicycle made using a Mavic rim …   Wikipedia

  • Difference between train and tram rails — A railroad or railway is a track where the vehicle travels over two parallel steel bars, called rails. The rails support and guide the wheels of the vehicles, which are traditionally either trains and trams. Modern light rail is a relatively new… …   Wikipedia

  • Second moment of area — The second moment of area, also known as the area moment of inertia or second moment of inertia, is a property of a shape that is used to predict its resistance to bending and deflection which are directly proportional. This is why beams with… …   Wikipedia

  • bridge — bridge1 bridgeable, adj. bridgeless, adj. bridgelike, adj. /brij/, n., v., bridged, bridging, adj. n. 1. a structure spanning and providing passage over a river, chasm, road, or the like. 2. a connecting, transitional, or intermediate route or… …   Universalium

  • Butterfly valve — A butterfly valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe. The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe. The plate… …   Wikipedia

  • Engineered wood — This 1966 photo shows wood waste being burned for fuel in Portland, Oregon …   Wikipedia

  • Haytor Granite Tramway — The Haytor Granite Tramway was a unique granite railed tramway running down from Haytor Down, Dartmoor, Devon. The tramway was built in 1820 to carry Haytor granite, which was of fine grain and high quality, down from the heights of Dartmoor for… …   Wikipedia

  • building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …   Universalium

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