过渡元素

ɡuò dù yuán sù
  • transition element;transitional elements
过渡元素过渡元素
  1. 环形过渡元素及其在轮盘振动分析中的应用

    An annular transition element and its application to disc vibration analysis

  2. 本文发展了环形等参数元素和环形过渡元素两种新元素。

    An annular isoparametric element and an annular transition element are developed in this paper .

  3. 除去过渡元素外,价电子位于最外面的电子层。

    Except for the transitional elements , valency electrons are in the outermost electron shell .

  4. 结构参数K与过渡元素卤化物标准生成焓的关系研究

    Studies on the relationship between structural parameter K and standard enthalpy of formation for transitional element halide

  5. 原始地幔标准化的过渡元素配分型式表现为不对称的W型,在Ti和Cu处形成两个明显的负异常谷。

    The PM-normalized TME distribution patterns are W-type , and have remarkably negative Ti and Cu anomaly .

  6. 过渡元素球粒陨石标准化曲线,也均呈微向右倾斜的W形曲线。

    The transitional element curves standardized by chondrite were all W type curves inclining gently to the right .

  7. Bi(Pb)SrCaCuO超导体中掺杂3d过渡元素Fe、Zn对超导性能的影响

    Effect on Superconductivity of bi ( pb ) srcacuo caused by fe , Zn substitution

  8. 易变价过渡元素Mn,Co和Ni对进一步提高受主态密度起重要作用;

    Mn , Co , Ni with transformable valence state as transition elements are important factors to increase further the state density ;

  9. 转基因Alzheimer病模型小鼠组织中过渡元素的分布研究

    Transitional metals distribution in tissues of transgenic Alzheimer ′ s disease model mice , and the involved roles of AD

  10. 我们在水冷的玻璃衬底上,交替溅射非常薄的过渡元素层和ZnO层,每一层的厚度大约1-3个原子单层。

    We alternately deposited very thin TM and ZnO layers , such as only 1-3 atomic monolayers , on the water cooled glass substrates .

  11. ICP-MS法同时测定食品中9种人体必需微量过渡元素

    Study on Simultaneous Determine 9 Trace Necessary Transi-tional Elements for Human Food by ICP-MS

  12. 对3d过渡元素及其化合物已有了充分的研究,但对4d族化合物的研究却很少,其中SrRuO3表现出非常有趣的ZFC/FC磁化强度的变化规律。

    The elements and compounds of 3d transitional group have been sufficiently studied , but the study in 4 d group is insufficient .

  13. 利用热重-差热分析,变温IR光谱和变温X-射线粉末衍射等方法,对所合成的过渡元素硅钼钨多元取代多金属含氧簇合物的热稳定性进行了研究。

    The thermal behaviour of five series of novel multicomponent substituted polyoxometalate clusters was studied by means of thermogravimetry , differential thermal analysis , IR spectroscopy and X-ray powder diffraction at different temperature .

  14. 氧化锌(znO)是一种直接宽带隙化合物半导体材料,对其进行过渡元素的掺杂可以明显的降低它的电阻率从而拓宽了氧化锌的应用领域。

    Zinc oxide ( ZnO ) is a direct wide-bandgap compound semiconductor materials . ZnO doped by transition metal can significantly lower the resistivity , which can bring a wide practical application in semiconductor devices .

  15. 用VSEPR理论判断过渡元素配合物构型探讨

    Study on Configuration of Complex for Transition Elements by VSEPR Theory Employment in Transition

  16. 由实验结果表明,一种过渡元素的羧酸盐TA是较理想的催化剂,用量为聚乙烯重量的0.8%;

    The results showed that a kind of carboxylate , which consists of transition elements and is called TA catalyst , was an ideal catalyst for the reaction , and the adding amount of it was 0.8 % of PE ;

  17. 在分子轨道理论的基础上,提出一种应用VSEPR理论判断过渡元素配合物分子构型的方法,并对其在八面体场、四面体场中的应用进行了详细的探讨。

    In this paper , a new approach to judge molecular configuration of complex for transition elements by VSEPR theory is put forward on the basis of molecular orbit theory . Its application to octahedral field and tetrahedral field are introduced in detail .

  18. 利用Villars原子参数Rsp、VE、XMB研究二种过渡元素(TandT′)和一种非过渡元素(M)间形成三元金属间化合物的规律。

    Villars 's system of atomic parameters , R sp , VE and X MB , has been used to investigate the regularities of the formation of ternary intermetallic compounds between one nontransition element ( M ) and two transition elements ( T and T ' ) .

  19. 冲绳海槽北端表层沉积物过渡元素地球化学特征

    Geochemical characteristics of transition elements in surface sediments Northern Okinawa Trough

  20. 过渡元素原子例外电子层结构的浅释

    A simple explanation of the exceptional electron structure of transition elements

  21. 过渡元素电子组态的反常现象

    The abnormal phenomena of atom 's electron configuration of transfer element

  22. 过渡元素间三元金属间化合物的形成规律。

    Regularities of Formation of Ternary Compounds between Transition Elements .

  23. 过渡元素钼掺杂氧化钨纳米棒的合成

    Synthesis of Tungsten Oxide Nanorods Doped with Transition Metal Molybdenum

  24. 过渡元素的无机桥配体桥联化合物

    Coordination - Bridged Compounds Inorganic Bridging Ligands of Transition Metals

  25. 非过渡元素共价分子的几何构型

    The Geometry of Covalent Molecules for Non - transition Elements

  26. 原子轨道杂化态与非过渡元素的立体化学

    Atomic Hybrid Orbitals and Sterochemistry of Elements in Main Groups

  27. 过渡元素原子电子层结构是长期困扰教学过程的难点。

    The electron structure of transition elements is permanentlydiffcult point of teaching .

  28. 厚盘动力分析的环形等参数元素和环形过渡元素

    Annular Isoparametric and Transition Elements for the Dynamic Analysis of Thick Discs

  29. 解读维生素8大迷思广东日饮老火汤中人体必需微量过渡元素分析

    Study of Eight Essential Transitional Metals for Human in Guangdong Long-boiled Soups

  30. 角重叠模型及其在过渡元素配合物中的应用

    Angular Overlap Model and Applications of It to Transition-Metal Complexes