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horizontal blast-hole

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  • Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting …   Wikipedia

  • Shaft construction — concerns the building of vertical openings such as Raises and Shafts. Shafts are vertical openings used for supplying equipment, personnel, and support systems to the horizontal tunnel where the pipeline is installed. They can be temporary or… …   Wikipedia

  • 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

  • metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …   Universalium

  • Liste Chronologique Des Shoot Them Up — La liste chronologique des shoot them up répertorie les shoot them up. La date indiquée correspond à la première sortie du jeu, toutes régions et plates formes confondues. Sommaire: 1962 1971 1975 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 …   Wikipédia en Français

  • Liste chronologique des shoot them up — La liste chronologique des shoot them up répertorie les shoot them up. La date indiquée correspond à la première sortie du jeu, toutes régions et plates formes confondues. Sommaire: 1962 1971 1975 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 …   Wikipédia en Français

  • Liste de shoot them up — Liste chronologique des shoot them up La liste chronologique des shoot them up répertorie les shoot them up. La date indiquée correspond à la première sortie du jeu, toutes régions et plates formes confondues. Sommaire: 1962 1971 1975 1977 1978… …   Wikipédia en Français

  • Liste des shoot them up — Liste chronologique des shoot them up La liste chronologique des shoot them up répertorie les shoot them up. La date indiquée correspond à la première sortie du jeu, toutes régions et plates formes confondues. Sommaire: 1962 1971 1975 1977 1978… …   Wikipédia en Français

  • Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

  • steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …   Universalium

  • 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

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