yóu
  • uranium
铀
[yóu]
  • 一种放射性元素。能放射出α、β和γ射线,在自然界中分布极少,主要用来产生原子能。

[yóu]
[名]
1

{化} (放射性金属元素) aranium (U):

  • 低浓缩铀

    low-enrichment uranium;

  • 裂变铀

    fissioning uranium;

  • 浓缩铀

    enriched uranium;

  • 天然铀

    native uranium

  1. 铀用作核电厂的燃料。

    Uranium is used to fuel nuclear plants .

  2. 浓缩铀是核武器的关键组成部分。

    Enriched uranium is a key component of a nuclear weapon

  3. 可世界上许多地区都有相当数量的铀储量。

    Uranium is available in considerable quantity from various areas of the world .

  4. 铀可溶解于海水。

    Uranium is soluble in sea water .

  5. 要避免使用那种非专用的同位素成分的铀化合物。

    It is important to avoid the use of uranium compounds of unspecified isotopic composition .

  6. 该理论认为,来自凝灰岩的地下水淋蚀铀

    The concept holds that uranium is leached by groundwater from tuffeceous rocks .

  7. P(350)微孔快速色谱柱分离富集铀的性能研究

    Studies on Properties of Tiny Decompressed Column Chromatography in Separation and Enrichment of Trace Uranium

  8. 作为对比样的贫铀表面Al涂层则表现为粘着磨损行为,抗磨损性差。讨论了贫铀表面涂层的腐蚀和磨损行为。

    The corrosion and abrasion behaviors of all coatings are discussed .

  9. 铀表面Cu、Ni-P/Cu镀层研究

    Study on Ni-P / Cu Coatings on U substrates

  10. 同位素源X射线荧光法对高放废液中铀的分析

    Analysis of u in the high-level liquid waste by isotopic source exciting X-ray fluorescence spectrometry

  11. 铀矿物和含铀矿石中铀价态比值的X射线光电子能谱分析

    Analysis of valence state ratio of uranium in uranium minerals and uranium-bearing ores by X-ray photoelectron spectrometry

  12. 当铀的浸出率最低时为8.12%,残渣中铀含量为100.0mg/kg,不超过排放标准。

    While the uranium content of residue is 100 mg / kg when the leaching rate is 8.12 % .

  13. 端视ICP-AES测定铀化合物中的40种微量杂质元素

    Determination of forty trace elements in uranium compounds by end-on viewed ICP-AES

  14. 华南火山岩及铀成矿相关的Sr,Nd,Pb同位素演化规律研究

    Research on evolutionary laws of sr , nd , Pb isotopes of uranium metallization and volcanic rocks in South China

  15. 大量铀溶液中~(237)Np含量的γ谱法测量

    The Determination of ~ ( 237 ) Np in the Large Amount of Uranium Solution by γ - spectrum

  16. 铀表面Al-Zn镀层的结构和保护性能

    Correlation between Al-Zn Coatings Structure and Its Protection for Uranium

  17. 用离子交换法从铀中分离钍-234(UX1)的初步结果

    Seperation of th-234 ( ux_1 ) from uranium by ion exchange method

  18. 激光荧光法测定ADU及AUC化工工艺过程中痕量铀

    The Determination of Trace Uranium in the ADU and AUC Processing by Laser Fluorescence

  19. 分别用扫描电镜、X射线衍射仪和应力分析仪研究了5种不同偏压的施加对铀上磁控溅射铝镀层微结构和残余应力的影响。结果表明,偏压强烈影响镀层的组织。

    Influence of different bias voltages on microstructures and residual stress of aluminum coatings is investigated by scanning electron microscope ( SEM ) , X-ray diffraction ( XRD ) and X-ray stress analyzer , respectively .

  20. 关于季铵盐萃取铀的多核萃合物(R4N)2U3O(10)的研究

    Study on polynuclear complex of uranium ( r_4n ) _2u_3o_ ( 10 ) in extraction by quaternary ammonium salt

  21. 采用盐雾腐蚀和磨损试验考核,结合SEM/EDS和XRD表征,分析了贫铀表面Al2O3/Al复合涂层的保护性能。

    Protection of Al2O3 / Al multi-layer coatings for depleted uranium was investigated by using a combination of 5 % NaCI salt fog and abrasion test with SEM / EDS and XRD profiles .

  22. Barbados岛珊瑚礁高精度铀系年龄及讨论

    The conventional island high precision dating and discussion of coral reefs from Barbados with U series method

  23. HCD中铀基态原子衰变时间常数和亚稳态原子寿命测量

    Measurement of decay time constant of ground and metastable states of U atoms in a HCD lamp

  24. 狗急性铀中毒和用Tiron急救治疗

    Curative effects of Tiron on dogs with acute uranium intoxication

  25. 如果将pH控制在3.0左右,热溶液中加入微过量的棓酸以沉淀钍,经过两次沉淀可将钍与铀定量的分离。

    Therefore thorium can be precipitated from the hot solution at about pH 3 in the presence of slight excess of the reagent . However , twice precipitating is required and the two elements can be separated quantitatively from each other .

  26. 结果表明:金属铀表面经CO处理后的抗氧化能力有所提高,抛物线氧化阶段其氧化速率比未处理样品的氧化速率低25%~60%;

    The result indicated that the oxidation resistance in dry air at 70 ℃ is improved after reaction of uranium with CO , and its oxidation rate is 25 % ~ 60 % lower than that of fresh uranium at initial stage of oxidation ;

  27. 断裂构造高频等值线星团是构造活动最强烈的地区,是成矿溶液活动的场所,地球化学梯度(pH,Eh)变化大,有利于铀成矿。

    Those areas covered by fracture structure frequency isopleth clusters represent the intense tectonic active areas and the ore-forming solution active places , where geochemical gradiants ( pH , Eh ) change in a wide range that is favourable for uranium metallization .

  28. 铀酰在乙酸盐体系中于D-290树脂上的交换行为

    Ion Exchange Behaviour of Uranyl in Solution of Acetate onto D-290 Macroporous Resin

  29. 本文扼要介绍了加拿大萨斯喀彻温省北部比弗洛支地区脉型(veintype)和阿萨巴斯卡盆地中与不整合面有关的(Unconformityassociated)铀资源概况;

    This paper briefly introduces uranium resources of unconformity associated uranium mineralization in Athabasca basin and vein type uranium mineralization in Beaverlodge area , Northern Saskatchewan , Canada , and systematically expounds common metallogenic characteristics of the above two types of uranium mineralization .

  30. 岩石的U-Ra平衡系数研究表明,火山岩类存在明显的U-Ra不平衡现象,而花岗岩提供成矿铀源应发生在16000a以前。

    U-Ra equilibrium coefficients of rocks indicate that there is obvious U-Ra disequilibrium phenomenon in volcanic rocks , and the time when granites provided uranium source occurred 16000 a ago .