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underground method

См. также в других словарях:

  • Underground coal gasification — (UCG) is an in situ gasification process carried out in non mined coal seams using injection and production wells drilled from the surface, which enables the coal to be converted into product gas. The process is flexible in operation and is… …   Wikipedia

  • Underground mining (soft rock) — refers to a group of underground mining techniques used to extract coal, oil shale and other minerals or geological materials from sedimentary ( soft ) rocks. Because deposits in sedimentary rocks are commonly layered and relatively less hard,… …   Wikipedia

  • Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold …   Wikipedia

  • Underground Electric Railways Company of London — Geographic map of the UERL s three deep level tube lines in 1907 Part of a series of article …   Wikipedia

  • Method Man — For the song, see Method Man (song). For the film, see Method Man (film). Method Man December 21, 2010 Background information Birth name …   Wikipedia

  • Underground city — An underground city is a network of tunnels that connect buildings beneath street level. These may include office blocks, shopping malls, train and metro stations, theatres, and other attractions. An underground city can usually be accessed… …   Wikipedia

  • Underground (stories) — infobox Book | name = Underground title orig = アンダーグラウンド Andāguraundo translator = Alfred Birnbaum, Philip Gabriel image caption= US cover author = Haruki Murakami cover artist = Cathryn S. Aison country = Japan language = Japanese series =… …   Wikipedia

  • Underground mining methods —   A drift mine is driven horizontally into coal that is exposed or accessible in a hillside. In a hydraulic mine, high pressure water jets break the coal from a steeply inclined, thick coalbed that would be difficult to mine with the usual… …   Energy terms

  • tunnels and underground excavations — ▪ engineering Introduction        Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …   Universalium

  • London Underground — Infobox Public transit name = London Underground The Tube |thumb|Official logo. imagesize= 150px locale = Greater London, Chiltern, Epping Forest, Three Rivers and Watford transit type = Rapid transit began operation = 1863 system length = 400 km …   Wikipedia

  • The Crystal Method — Выступление на фестивале «SXSW», 2009 год …   Википедия

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