英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

uranium    音标拼音: [jɚ'eniəm]
n. 铀

铀

uranium
n 1: a heavy toxic silvery-white radioactive metallic element;
occurs in many isotopes; used for nuclear fuels and nuclear
weapons [synonym: {uranium}, {U}, {atomic number 92}]

Uranium \U*ra"ni*um\, n. [NL., from Uranus the planet. See
{Uranus}.] (Chem.)
An element of the chromium group, found in certain rare
minerals, as pitchblende, uranite, etc., and reduced as a
heavy, hard, nickel-white metal which is quite permanent. Its
yellow oxide is used to impart to glass a delicate
greenish-yellow tint which is accompanied by a strong
fluorescence, and its black oxide is used as a pigment in
porcelain painting. Symbol U. Atomic weight 239.
[1913 Webster]

Note: Uranium was discovered in the state of an oxide by
Klaproth in 1789, and so named in honor of Herschel's
discovery of the planet Uranus in 1781.
[1913 Webster] Uran-ocher


请选择你想看的字典辞典：
单词字典翻译
Uranium查看　Uranium　在百度字典中的解释百度英翻中〔查看〕
Uranium查看　Uranium　在Google字典中的解释Google英翻中〔查看〕
Uranium查看　Uranium　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • What is Uranium? | IAEA
    Uranium is a naturally occurring radioactive element, which has the atomic number of 92 and corresponds to the chemical symbol U in the periodic table It belongs to a special group of elements called “actinides” — elements that were discovered relatively late in history
  • What is Uranium? | IAEA
    Uranium is a naturally occurring radioactive element, which has the atomic number of 92 and corresponds to the chemical symbol U in the periodic table It belongs to a special group of elements called “actinides” — elements that were discovered relatively late in history
  • What is Uranium? | IAEA
    Uranium is a naturally occurring radioactive element, which has the atomic number of 92 and corresponds to the chemical symbol U in the periodic table It belongs to a special group of elements called “actinides” — elements that were discovered relatively late in history
  • Les ressources en uranium sont suffisantes, mais des investissements . . .
    Les ressources en uranium sont suffisantes pour permettre à la fois l’utilisation ininterrompue de l’énergie d’origine nucléaire et une expansion importante du secteur jusqu’en 2050 et au-delà Il sera néanmoins primordial d’investir en temps voulu dans de nouvelles techniques de
  • Sufficient Uranium Resources Exist, However Investments Needed to . . .
    Sufficient uranium resources exist to support both the continued use of nuclear power and its significant growth through 2050 and beyond However, timely investments in new exploration, mining operations and processing techniques will be essential to ensure that uranium becomes available to the market when needed
  • Production d’uranium pour les réacteurs nucléaires | AIEA
    L’uranium est le principal combustible utilisé dans les réacteurs nucléaires Il doit être géré correctement, de façon sûre et durable Ces derniers temps, la production annuelle mondiale d’uranium naturel était comprise entre 55 000 et 65 000 tonnes d’uranium métal, soit l’équivalent de la demande en combustible nucléaire Le thorium, qui pourrait constituer une source
  • What is Nuclear Energy? The Science of Nuclear Power
    What is nuclear fission? Nuclear fission is a reaction where the nucleus of an atom splits into two or more smaller nuclei, while releasing energy For instance, when hit by a neutron, the nucleus of an atom of uranium-235 splits into two smaller nuclei, for example a barium nucleus and a krypton nucleus and two or three neutrons
  • What is Uranium? | IAEA
    Uranium is a naturally occurring radioactive element, which has the atomic number of 92 and corresponds to the chemical symbol U in the periodic table It belongs to a special group of elements called “actinides” — elements that were discovered relatively late in history
  • Uranium production for nuclear reactors | IAEA
    Uranium is the primary fuel for nuclear reactors and must be managed properly, in a safe and sustainable manner Recent annual production of natural uranium world-wide has been between 55,000 and 65,000 tons of uranium metal, similar to the fuel demand Additionally, thorium is also being investigated as a potential alternate source of nuclear
  • World Distribution of Uranium Deposits - International Atomic Energy Agency
    World Distribution of Uranium Deposits (UDEPO) is a database of uranium deposits in the world UDEPO contains information on the classification, geological characteristics, geographical distribution and technical characteristics of the uranium deposits worldwide





中文字典-英文字典  2005-2009