balanced drilling
121Natural resource economics — Economics …
122Elevator — For other uses, see Elevator (disambiguation). A set of lifts in the lower level of a London Underground station. The arrows indicate each elevator s position and direction of travel …
123Machining vibrations — Machining vibrations, also called chatter, correspond to the relative movement between the workpiece and the cutting tool. The vibrations result in waves on the machined surface. This affects typical machining processes, such as turning, milling… …
124Christine O'Donnell — in August 2011. Personal details Born Christine Therese O Donnell August 27, 1969 (1969 08 27) …
125Africa — /af ri keuh/, n. 1. a continent S of Europe and between the Atlantic and Indian oceans. 551,000,000; ab. 11,700,000 sq. mi. (30,303,000 sq. km). adj. 2. African. * * * I Second largest continent on Earth. It is bounded by the Mediterranean Sea,… …
126Bolivia — Bolivian, adj., n. /beuh liv ee euh, boh /; Sp. /baw lee vyah/, n. 1. a republic in W South America. 7,669,868; 404,388 sq. mi. (1,047,370 sq. km). Caps.: La Paz and Sucre. 2. (often l.c.) a twill fabric made of cut pile with lines either in the… …
127crystal — crystallike, adj. /kris tl/, n., adj., v., crystaled, crystaling or (esp. Brit.) crystalled, crystalling. n. 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallized quartz. 3. Chem., Mineral. a solid body… …
128Crystal — /kris tl/, n. 1. a city in SE Minnesota, near Minneapolis. 25,543. 2. a female given name. * * * I Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal s… …
