查询词典 elements

Lead (atomic number 82) and gold (atomic number 79) are defined as elements by the number of protons they possess.

铅（原子数82）和金（原子数79）都是根据所拥有的质子数定义的"元素"。

At last, the conductivity order is yet explained by using the electronegativities and atomic radius of the elements P, As, Sb.

最后，本文又从P，As，Sb 的电负性和原子半径的角度讨论了这一次序的起因

The position of the hump shifts to a higher temperature with increasing atomic radius and decreasing electronegativity of addition elements.

结果表明：在高温处Al85Ni10M5液态合金的比热容曲线上均有驼峰出现，其位置随添加元素的原子半径的增大和电负性的减小而向高温处偏移。

When doping the rare earth elements in nano-TiO〓, the relationships between the photocatalytic activities and the ratio of electronic affinity to ionic radius of doped atomic ion were studied.

在稀土元素对纳米TiO〓光催化剂的掺杂研究中，发现催化活性与掺杂元素的稳定氧化态的电子亲和势与离子半径的比值Ea/r有较好的相关性，而与Ea/r〓的相关性相对较低。

According to the principle of continuity of wave function, when different elements react with each other to form compound, the electronic densities of atoms at interface must be equal. Each atom should change the atomic radius to shift their electrical density, then this made huge micro-stress in atoms.

在单质元素原子形成化合物时，由于要满足量子力学的波函数连续原理，要求原子界面上的电子密度相等，各原子在化合时必须通过改变原子半径以达到相同的原子边界电子密度，从而在原子中产生了很大的微观内应力。

Furthermore, the metallic glass samples are prepared by vacuum injection method and the rationality of above-mentioned relationships and RBF models is directly verified. It is shown that there are extremum phenomena between the Rc andΔd ,Δe and v respectively. However, the positions of the extremum are different from different alloy systems and the extremum phenomena may be related to the optimum composition region and the optimum additive quantity. More elements in the alloy are in favor of the improvement of the GFA. And as for the high GFA alloy, the atomic percentage, atomic radius difference and atomic electronegativity difference are harmoniously matched.

d、Δe和v与临界冷却速度Rc的关系中都出现极值现象，对于不同的合金体系，极值出现的位置不同；金属玻璃的最优成分范围以及各种添加元素的最佳添加量行为，可能与此极值现象相关；合金中包含的组元数目多有利于提高其玻璃形成能力，玻璃形成能力强的合金，其各个组元的原子百分含量、组元原子半径差及其电负性差之间的搭配是很和谐的；融合建模的合金系之间包含的主要组元数量和种类越相近，所建立的模型的可靠程度越高，其预测结果与实测结果越吻合。

The results indicate that the effect of alloying elements V and Cr on mechanical properties at room-temperature, creep behavior and microstructures are similar. With increasing contents of V and Cr, their mechanical properties produce little change, the creep resistant property decreases and microstructure grows, which is mainly due to their characteristics of β-stability element and smaller atomic radius compared with Ti. On the contrary, the effects of V and Cr on the thermal stability are quite different. With increasing V content or decreasing Cr content the thermal stability for the alloy becomes better, which may be due to the different solution characteristics of V and Cr element in titanium alloy that V belongs to isomorphous β-stability element and Cr belongs to eutectoid β-stability element.

结果表明：合金元素V和Cr对Ti40合金室温力学性能、蠕变行为和组织的影响具有相似性，即随V和Cr含量的降低，合金室温综合力学性能变化不明显、抗蠕变能力减弱、组织粗化：这与V和Cr同属于β稳定元素、且原子半径都小于Ti原子有关；而V和Cr对于热稳定性能的影响则完全相反，V含量的增加或Cr含量的降低含金热稳定性能优化，其主要原因可能与V属于同品型β稳定元素而Cr属于共析型β稳定元素有关。

Much of the book is devoted to alchemy, but also the development of modern chemistry: atomic theory, nature of the elements, beginning of organic chemistry, much more.

书中的许多篇幅炼金术，也是近代化学发展：原子理论大自然的元素，从有机化学更多。

These elements have to be of a specific grain size, atomic weight, and exact dimensions.

这些内容都必须具体的晶粒尺寸，原子重量，尺寸精确。

Periodic table (1869): Organized array of all the chemical elements in approximately increasing order of their atomic weight.

周期表(1869)：所有的化学元素按它们的原子量逐渐增加的顺序有组织地排列。

This immediately brings us to the next part of this article: creating an output "replace function".

下面进入文章的第二部分：建立一个"缓存处理函数"。

He was elected as an International Ornithological Committee member in 2002 during the 24th IOC held in Beijing.

现为中国鸟类学会理事和WPA 专家组成员。2002年被推选为国际鸟类委员会委员。