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121Truss bridge — for a single track railway, converted to pedestrian use and pipeline support Ancestor Beam bridge[ …
122Citigroup Center — General information Type Office Location 153 East 53rd Street, Manhattan, New York …
123Electricity meter — Typical North American domestic analog electricity meter …
124Three-phase — This article deals with the basic mathematics and principles of three phase electricity. For information on where, how and why three phase is used, see three phase electric power. In electrical engineering, three phase electric power systems have …
125Covered hopper — car originally built in the 1950s for the Atlantic Coast Line Railroad. After the 1967 SCL merger these cars were fitted with rotary couplers and used in Bone Valley phosphate service. A Covered Hopper is a railroad freight car. They are designed …
126Lexra — was a semiconductor intellectual property core company based in Waltham, Massachusetts. It was founded in 1997 and began developing and licensing semiconductor intellectual property cores that implemented the MIPS I instruction set, except for… …
127Transfer switch — Transfer switches allow switching from a primary power source to a secondary or tertiary power source and are employed in some electrical power distribution systems. Most often transfer switches can be seen where emergency power generators are… …
128Medium Girder Bridge — A 16 Bay with LRS Medium Girder Bridge across the Kazer River, Mosul, Iraq, 2003. The Medium Girder Bridge (MGB) is a lightweight, man portable bridge and can be assembled without help from heavy equipment. In addition, it is also a deck type,… …
