multiple-hearth
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multiple-hearth furnace — Смотри многоподовая печь … Энциклопедический словарь по металлургии
Hearth tax — A hearth tax was a property tax in certain countries during the medieval and early modern period, levied on each hearth or family unit. It was calculated based on the number of hearths, or fireplaces, within a municipal area. Hearth tax was… … Wikipedia
Plow and Hearth — Infobox Company company name = Plow and Hearth company type = Subsidiary foundation = 1980 Madison, Virginia location = Madison, Virginia industry = Retail products = Furniture, home furnishings, apparel, food. homepage =… … Wikipedia
многоподовая печь — [multiple hearth furnace] вертикальная цилиндрическая печь для обжига шихтовых материалов в ЦМ. Рабочее пространптво многоподовой печи разделено по высоте на несколько ярусов кирпичными подами, каждый из которых является сводом для… … Энциклопедический словарь по металлургии
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
molybdenum processing — Introduction preparation of the ore for use in various products. Molybdenum (Mo) is a white, platinum like metal with a melting point of 2,610° C (4,730° F). In its pure state, it is tough and ductile and is characterized by moderate… … Universalium
tin processing — Introduction preparation of the ore for use in various products. Tin (Sn) is a relatively soft and ductile metal with a silvery white colour. It has a density of 7.29 grams per cubic centimetre, a low melting point of 231.88° C… … Universalium
environmental 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 … Universalium
Sewage 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… … Wikipedia
mercury processing — Introduction preparation of the ore for use in various products. Mercury (Hg) has a unique combination of physical properties. Its low melting point (−38.87° C [−38° F]) and boiling point (356.9° C [674° F]), high specific gravity (13 … Universalium
