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overhead track

См. также в других словарях:

  • Overhead crane — An overhead crane, featuring runways, bridge, and hoist in a traditional industrial environment …   Wikipedia

  • overhead door — A door having hinged sections, engaged at the top with an overhead track to permit it to be pushed up and extended at some height in the building in opening it to permit ingress or egress; used extensively in garages, both public and private, and …   Ballentine's law dictionary

  • Overhead lines — This article is about the transmission of electrical power to road and rail vehicles. For transmission of bulk electrical power to general consumers, see Electric power transmission. For powerlines mounted on pylons, see overhead power line.… …   Wikipedia

  • overhead railway — noun a railway that is powered by electricity and that runs on a track that is raised above the street level • Syn: ↑elevated railway, ↑elevated railroad, ↑elevated, ↑el • Hypernyms: ↑railway, ↑railroad, ↑railroad line, ↑ …   Useful english dictionary

  • Track circuit — A track circuit is a simple electrical device used to detect the presence or absence of a train on rail tracks, used to inform signallers and control relevant signals. Principles and operation The basic principle behind the track circuit lies in… …   Wikipedia

  • Track (rail transport) — Permanent way redirects here. For other uses, see Permanent way (disambiguation). Twin rail tracks in a wooded area …   Wikipedia

  • Track transition curve — The red Euler spiral is an example of an easement curve between a blue straight line and a circular arc, shown in green …   Wikipedia

  • overhead crossing — A highway elevated and crossing over a railroad track, thereby avoiding a grade crossing. One railroad elevated and crossing above another railroad. 44 Am J1st RR § 286. A highway elevated and crossing over another highway, common in modern… …   Ballentine's law dictionary

  • door track — noun : a usually overhead track for door rollers …   Useful english dictionary

  • Tramway track — is used on tramways or light rail operations. Grooved rails (or girder rails) are often used in order to make street running feasible. Like standard rail tracks, tram tracks consist of two parallel steel rails.Tram rails can be placed in several… …   Wikipedia

  • Double track — This article is about the use of two tracks on a railway line. For the sound recording technique, see doubletracking. A double track railway line A double track railway usually involves running one track in each direction, compared to a single… …   Wikipedia

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