查询词典 elements

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。

In an ICP analysis, the plasma will reach a temperature in the range of 6,000 - 10,000℃, which will efficiently atomize most elements.

在ICP分析中，等离子体的温度将达到6000℃～10000℃，使大多数元素得到有效的原子化。

The technique elements of the modern music existed in the piano accompany part of Chinese art songs in the first half of 20th century, such as modes-semitone system of Neo-Nationalism in Music, bicinium technique of Neo-Classicism, and free atonality of Expressionism.

内容提要：20世纪上半叶中国艺术歌曲的钢琴伴奏中存在现代音乐的技法因素——新民族乐派"调式半音体系"、新古典主义音乐"二部写作技法"、表现主义音乐"自由无调性"的某些技法特征。

Genes encoding Drought-Responsive-Element Binding proteins were cloned from Triticum aestivum and Atriplex hortensis. TaDREB1 and AhDREB1 can specifically bind the DRE elements in the promoters and thus activate the transcription of downstream genes in yeast cells as well as transgenic Arabidopsis and transgenic tobacco plants.

克隆了小麦和山菠菜转录因子TaDREB1和AhDREB1基因，它们都编码DRE（Dehydration-Responsive-Element）结合蛋白，在酵母单杂交系统、转基因拟南芥和转基因烟草中都能特异结合DRE元件并激活下游报告基因的表达。

The new elements and regeneration movements are here to attune to and learn to foster your continued journey ahead.

新的元素及再生运动在这里让你们接通与学习，以培育你们前方的继续旅途。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。