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rotary-shot drill

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  • shot drill — noun : a rotary rock drill using chilled steel shot as an abradant compare core drill …   Useful english dictionary

  • List of oil field acronyms — Contents 1 # 2 A 3 B 4 C …   Wikipedia

  • List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …   Wikipedia

  • Directional drilling — A horizontal directional drill in operation Directional drilling (or slant drilling) is the practice of drilling non vertical wells. It can be broken down into three main groups: Oilfield Directional Drilling, Utility Installation Directional… …   Wikipedia

  • mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …   Universalium

  • 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

  • Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …   Wikipedia

  • History of the petroleum industry in Canada — The Canadian petroleum industry arose in parallel with that of the United States. Because of Canada s unique geography, geology, resources and patterns of settlement, however, it developed in quite different ways. The evolution of the petroleum… …   Wikipedia

  • United States Marine Corps — USMC redirects here. For other uses, see United States Maritime Commission and University of St. Michael s College. United States Marine Corps United States M …   Wikipedia

  • Mallet — For other uses, see Mallet (disambiguation). A mallet is a kind of hammer, usually of rubber,or sometimes wood smaller than a maul or beetle and usually with a relatively large head. Contents 1 Tools 2 Musical instruments 3 Toys …   Wikipedia

  • Nail gun — Pneumatic nail gun in use A nail gun, nailgun or nailer is a type of tool used to drive nails into wood or some other kind of material. It is usually driven by electromagnetism, compressed air (pneumatic), highly flammable gases such as butane or …   Wikipedia

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