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1 водяная коррозия
водяная коррозия
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
water corrosivity
Complex series of reactions between the water and metal surfaces and materials in which the water is stored or transported. The corrosion process is an oxidation/reduction reaction that returns refined or processed metal to their more stable ore state. With respect to the corrosion potential of drinking water, the primary concerns include the potential presence of toxic metals, such as lead and copper. (Source: WILKES)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
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Русско-французский словарь нормативно-технической терминологии > водяная коррозия
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2 каталитический конвертер
каталитический конвертер
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
catalytic converter
Catalytic converters are designed to clean up the exhaust fumes from petrol-driven vehicles, which are otherwise the major threat to air quality standards in congested urban streets and on motorways. Converters remove carbon monoxide, the unburned hydrocarbons and the oxides of nitrogen. These compounds are damaging to human health and the environment in a variety of ways. The converter is attached to the vehicle' s exhaust near the engine. Exhaust gases pass through the cellular ceramic substrate, a honeycomb-like filter. While compact, the intricate honeycomb structure provides a surface area of 23.000 square metres. This is coated with a thin layer of platinum, palladium and rhodium metals, which act as catalysts that simulate a reaction to changes in the chemical composition of the gases. Platinum and palladium convert hydrocarbons and carbon monoxide into carbon dioxide and water vapour. Rhodium changes nitrogen oxides and hydrocarbons into nitrogen and water, which are harmless. (Source: WRIGHT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
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Русско-французский словарь нормативно-технической терминологии > каталитический конвертер
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3 наука о воде
наука о воде
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
water science
The science that treats the occurrence, circulation, distribution, and properties of the waters of the earth, and their reaction with the environment. (Source: MGH)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
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Русско-французский словарь нормативно-технической терминологии > наука о воде
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4 обработка газа
обработка газа
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
treatment of gases
Gas is treated before it can be supplied to the marketplace. The extent to which gas needs to be processed will depend on its quality, the amount of associated impurities such as water, carbon dioxide and sulphur compounds, and the ultimate end-use for the gas. Common gaseous impurities found in natural gas are carbon dioxide and sulphur compounds. Both have an acidic reaction and are given the generic name 'acid gases'. These gases can be removed by a number of commercial processes, using either a physical or a chemical solvent. Physical solvent processes tend to be used where gas pressures are high and for gases with lower levels of propane and heavier hydrocarbons. (Source: SHELL)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
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Русско-французский словарь нормативно-технической терминологии > обработка газа
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5 цезий
цезий
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
caesium
A soft silvery-white and highly reactive metal belonging to the alkali group of metals. It is a radiation hazard, because it can occur in two radioactive forms. Caesium-134 is produced in nuclear reactors, not directly by fission, but by the reaction. It emits beta- and gamma-radiation and has a half-life of 2.06 years. Caesium-137 is a fission product of uranium and occurs in the fallout from nuclear weapons. It emits beta- and gamma-rays and has a half-life of 30 years. Caesium-137 was the principal product released into the atmosphere, and hence the food chain, from atmospheric testing of nuclear weapons and from the Windscale fire and Chernobyl nuclear accidents. After the Chernobyl accident, which spread a radiation cloud across Europe, the European Commission proposed new and more restrictive limits on levels of caesium in food and drinking water. (Source: WRIGHT)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
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Русско-французский словарь нормативно-технической терминологии > цезий
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