underground chamber

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• 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 Railroad — This article is about the 19th century slave escape routes. For an article about railroads built below ground, see rapid transit. For the band, see Underground Railroad (band). Part of a series on …   Wikipedia

• Chamber of Reflection — A Chamber of Reflection is a small darkened room adjoining a Masonic Lodge. Its sombre appearance and the gloomy emblems with which it is furnished are calculated to produce serious meditations.[1] It is a small darkened room or chamber, with the …   Wikipedia

• underground — {{Roman}}I.{{/Roman}} noun (BrE) ⇨ See also ↑subway VERB + UNDERGROUND ▪ go by, go on, take, travel by, travel on ▪ We went by underground. ▪ …   Collocations dictionary

• chamber — noun 1 room/enclosed space ADJECTIVE ▪ dark, darkened ▪ private, secret ▪ inner, outer ▪ main …   Collocations dictionary

• 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

• Sarawak Chamber — The Sarawak Chamber is a huge chamber in Gua Nasib Bagus (Good Luck Cave), which is located in Gunung Mulu National Park, in the Malaysian state of Sarawak on the island of Borneo. It is considered the largest known underground chamber in the… …   Wikipedia

• collapse chamber —    An underground chamber containing notable quantities of collapsed material. The term is commonly abused in describing the origin of cave chambers floored by collapse debris. Though wall and roof collapse are common modifying processes in… …   Lexicon of Cave and Karst Terminology

• Magma chamber — 11 magma chamber A magma chamber is a large underground pool of molten rock found beneath the surface of the Earth. The molten rock in such a chamber is under great pressure, and given enough time, that pressure can gradually fracture the rock… …   Wikipedia

• London Underground D78 Stock — D Stock redirects here. For the 1912 Metropolitan District Railway Stock, see London Underground D Stock. D78 Stock Manufacturer Metro Cammell In service …   Wikipedia

• Chicagoland Observatory for Underground Particle Physics — (COUPP) is an experimental program to use bubble chambers to search for Weakly Interacting Massive Particles (WIMPs) which could make up a majority of the dark matter. The technique involves mildly superheating freons, typically… …   Wikipedia