ash corrosion
41Métaux réfractaires — H   He Li Be   B C N O F Ne Na Mg   Al Si P S Cl Ar K Ca Sc   Ti V Chrome Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y …
42Phosphorus — This article is about the chemical element. For other uses, see Phosphorus (disambiguation). silicon ← phosphorus → sulfur …
43Hydrogen chloride — HCl redirects here. For the acid, see Hydrochloric acid. Hydrogen chloride …
44Ceramic glaze — Composite body, painted, and glazed bottle. Dated 16th century. From Iran. New York Metropolitan Museum of Art. Glaze is a layer or coating of a vitreous substance which has been fired to fuse to a ceramic object to color, decorate, strengthen or …
45Libya — /lib ee euh/, n. 1. Anc. Geog. the part of N Africa W of Egypt. 2. Italian, Libia. a republic in N Africa between Tunisia and Egypt: formerly a monarchy 1951 69. 5,648,359; 679,400 sq. mi. (1,759,646 sq. km). Cap.: Tripoli. * * * Libya… …
46Soil — For other uses, see Soil (disambiguation). A represents soil; B represents laterite, a regolith; C represents saprolite, a less weathered regolith; the bottommost layer represents bedrock …
47History 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… …
48architecture — /ahr ki tek cheuhr/, n. 1. the profession of designing buildings, open areas, communities, and other artificial constructions and environments, usually with some regard to aesthetic effect. Architecture often includes design or selection of… …
49hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …
50microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …
