final melting process — процесс доводки плавки
top-and-bottom process — разделительная плавка
skull-melting process — плавка в гарнисажной печи
vacuum-melting process — процесс вакуумной плавки
submerged arc process — процесс плавки погруженной дугой
English-Russian big polytechnic dictionary. 2014.
Zinc smelting — is the process of converting zinc concentrates (ores that contain zinc) into pure zinc. The most common zinc concentrate processed is zinc sulfide,Citation | title = Compilation of Air Pollutant Emission Factors | publisher = U.S. Environmental… … Wikipedia
metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… … Universalium
Mining in the Upper Harz — The headframe of the Emperor William Shaft in Clausthal is one of the oldest surviving winding towers in Germany … Wikipedia
Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… … Universalium
cañada — /keuhn yah deuh, yad euh/, n. Chiefly Western U.S. 1. a dry riverbed. 2. a small, deep canyon. [1840 50; < Sp, equiv. to cañ(a) CANE + ada n. suffix] * * * Canada Introduction Canada Background: A land of vast distances and rich natural resources … Universalium
Canada — /kan euh deuh/, n. a nation in N North America: a member of the Commonwealth of Nations. 29,123,194; 3,690,410 sq. mi. (9,558,160 sq. km). Cap.: Ottawa. * * * Canada Introduction Canada Background: A land of vast distances and rich natural… … Universalium
Cobalt extraction techniques — Cobalt ore Several methods exist for the separation of cobalt from copper and nickel. They depend on the concentration of cobalt and the exact composition of the used ore. Contents … Wikipedia
gold processing — Introduction preparation of the ore for use in various products. For thousands of years the word gold has connoted something of beauty or value. These images are derived from two properties of gold, its colour and its chemical stability.… … Universalium
