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21 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
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Русско-французский словарь нормативно-технической терминологии > цезий
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22 активная зона
1) General subject: core (ядерного реактора), reactor core2) Naval: active section, chain-reacting region3) Engineering: active zone, reaction zone4) Mathematics: reacting region5) Special term: radiation zone (ядерного реактора)6) Metrology: core (реактора)7) Nuclear physics: fissile core, radiation zone, reacting core8) Makarov: active active zone, active area, active zone (яд. РК), core region (ядерного РК), fissile region (ядерного РК), fissionable region (ядерного РК), radiation zone (яд. РК), reaction zone (яд. РК)9) Electrical engineering: core region (ядерного реактора), fissile region (ядерного реактора), fissionable region (ядерного реактора), radiation zone (реактора)
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См. также в других словарях:
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