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English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
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
Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry … Wikipedia
Maize — This article is about the cereal grain, primarily known as corn in the United States. For other uses, see Maize (disambiguation). Corn redirects here. For other uses, see Corn (disambiguation). Maize Illustration depicting both male and female… … Wikipedia
Magic: The Gathering Pro Tour season 1996–97 — 1996–97 Pro Tour season Pro Player of the Year Paul McCabe Rookie of the Year none awarded World Champion … Wikipedia
Milling machine — For the machine used in road construction, see Asphalt milling machine. Not to be confused with mill (grinding). Example of a bridge type CNC vertical milling center … Wikipedia
Tap and die — Not to be confused with Tool and die. Taps and dies are cutting tools used to create screw threads, which is called threading. A tap is used to cut the female portion of the mating pair (e.g., a nut). A die is used to cut the male portion of the… … Wikipedia
Witches (Discworld) — See also: Discworld magic A major subset of the Discworld novels of Terry Pratchett involves the witches of Lancre. They are closely based on witches in British folklore and a slightly tongue in cheek reinterpretation of the Triple Goddess. Witch … Wikipedia
Andrew Delmar Hopkins — was an American entomologist in the late 19th and early 20th centuries, becoming head entomologist for the U.S. Department of Agriculture in 1904. His research was primarily on bark beetle population dynamics and impacts, and he also developed… … Wikipedia
Numerical control — CNC redirects here. For other uses, see CNC (disambiguation). A CNC Turning Center … Wikipedia
Visual arts by indigenous peoples of the Americas — encompasses the visual artistic traditions of the indigenous peoples of the Americas from ancient times to the present. These include works from South America, Mesoamerica, North America including Greenland, as well as Siberian Yup ik peoples who … Wikipedia
Drill — For other uses, see Drill (disambiguation). Drill scheme A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or… … Wikipedia