drilling size
121Shaft 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… …
122Cerebellopontine angle syndrome — Classification and external resources ICD 9 191.6 Neoplasms of brain: Cerebellum NOS: Cerebellopontine angle The cerebellopontine angle is the anatomic space between the cerebellum and the pons. This is a common site for the growth of acoustic… …
123Conasauga shale gas field — The Conasauga Shale is a geological gas shale formation lying within the Appalachian thrust and fault region of the state of Alabama and consisting of Lower Paleozoic (Cambrian and Ordovician) sedimentary rocks at an approximate 1,000 foot depth… …
124Barbados — Barbadian /bahr bay dee euhn/, adj., n. /bahr bay dohz, dohs, deuhs/, n. an island in the E West Indies constituting an independent state in the Commonwealth of Nations: formerly a British colony. 257,731; 166 sq. mi. (430 sq. km). Cap.:… …
125Conasauga shale — Coordinates: 33°41′55.09″N 85°36′14.74″W / 33.6986361°N 85.6040944°W / 33.6986361; 85.6040944 The Conasauga Shale is a Cambri …
126Grinding (abrasive cutting) — Sketch of how abrasive particles in a grinding wheel remove material from a workpiece. Grinding is an abrasive machining process that uses a grinding wheel as the cutting tool. A wide variety of machines are used for grinding: Hand cranked knife… …
127Nintoku Seamount — Map Bathymetric mapping of Nintoku …
128Asbestos — For other uses, see Asbestos (disambiguation). Fibrous asbestos on muscovite …
