material removal
61decalcification — Removal by solution of the calcium carbonate constituents from a rock or sediment, leaving a residuum of noncalcareous material [9, 21]. Synonyms: (French.) décalcification; (German.) Lösungsrückstand ( Entkalkung); (Greek.) exasvestoses;… …
62steel — 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 …
63environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
64Sewage treatment — The objective of sewage treatment is to produce a disposable effluent without causing harm to the surrounding environment, and also prevent pollution.[1] Sewage treatment, or domestic wastewater treatment, is the process of removing contaminants… …
65Choctaw — For other uses, see Choctaw (disambiguation). Choctaw Choctaw portraits Total population 160,000   …
66harbours and sea works — Introduction harbour also spelled harbor any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… …
67Online Copyright Infringement Liability Limitation Act — OCILLA redirects here. For the town in Georgia, United States, see Ocilla, Georgia. Online Copyright Infringement Liability Limitation Act Full title To amend title 17, United States Code, to implement the World Intellectual Property Organization …
68Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …
69coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …
70metabolism — /meuh tab euh liz euhm/, n. 1. Biol., Physiol. the sum of the physical and chemical processes in an organism by which its material substance is produced, maintained, and destroyed, and by which energy is made available. Cf. anabolism, catabolism …
