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bidirectional seal

См. также в других словарях:

  • Dry gas seal — Dry gas seals are non contacting, dry running mechanical face seals consist of a mating (rotating) ring and a primary (stationary) ring. When operating, grooves in the rotating ring generate a fluid dynamic force causing the stationary ring to… …   Wikipedia

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

  • Educational neuroscience — (also called Mind Brain and Education; MBE) is an emerging scientific field that brings together researchers in cognitive neuroscience, developmental cognitive neuroscience, educational psychology, educational technology, education theory and… …   Wikipedia

  • Anthropology and Archaeology — ▪ 2009 Introduction Anthropology       Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… …   Universalium

  • 9 track tape — The IBM System/360, released in 1964, introduced what is now generally known as 9 track tape. The magnetic tape is 1/2 inch (12.65 mm) wide, with 8 data tracks and one parity track for a total of 9 parallel tracks. Data is stored as 8 bit… …   Wikipedia

  • Door — For other uses, see Door (disambiguation). A door is a movable structure used to open and close off an entrance, typically consisting of a panel that swings on hinges or that slides or rotates inside of a space. When open, they admit ventilation… …   Wikipedia

  • Scalable Vector Graphics — Infobox file format name = Scalable Vector Graphics icon = caption = extension = .svg, .svgz mime = image/svg+xml [ [http://www.w3.org/TR/SVGMobile12/mimereg.html M Media Type registration for image/svg+xml] ] type code = uniform type = magic =… …   Wikipedia

  • Shrink wrap — Shrinkwrapped redirects here. For the album, see Shrinkwrapped (album). Shrink wrap, also shrinkwrap or shrink film, is a material made up of polymer plastic film. When heat is applied to this material it shrinks tightly over whatever it is… …   Wikipedia

  • Stereophonic sound — Stereophonic sound, commonly called stereo, is the reproduction of sound, using two or more independent audio channels, through a symmetrical configuration of loudspeakers, in such a way as to create a pleasant and natural impression of sound… …   Wikipedia

  • Apollo/Skylab A7L — Apollo 11 A7L space suit worn by Buzz Aldrin, and another worn by photographer Neil Armstrong in the visor reflection. The A7L Apollo Skylab spacesuit is the primary pressure suit worn by NASA astronauts for Project Apollo, the three manned… …   Wikipedia

  • Indo-Aryan migration — For other uses, see Indo Aryan migration (disambiguation). Indo European topics Indo European languages (list) Albanian · Armenian · Baltic Celtic · Germanic · Greek Indo Iranian …   Wikipedia

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