查询词典 valency electron

The origin of this giant Hall Effect is contributed to 3d local electron- electron interaction.

样品的电阻率温度曲线研究表明异常霍尔电阻率可能来源于3d局域电子－电子的散射作用。

Applying atomic many-body theory to analyse the Goldston diagrams of effective Hamiltonian and wave operator about electron-electron correlation for open shell atoms, we use a simple method to evaluate the effective Hamiltonian and calculate the correlation effectes of Corbon with HFS model as a zeroth order approximation. Making contrasts with the experiment and the calculation based on HF model we get pleased results.

应用原子多体理论对开壳层原子中电子关联效应的有效哈密顿量及波算符的Goldston图进行了分析，在此基础上得到了计算有效哈密顿量的简单方法；以HFS模型为零级近似对中性碳原子基态的关联效应进行了计算并通过与实验结果及其他文献基于HF模型进行的计算相比较，得到了令人满意的结论。

The factors such as introduction of aromatic heterocycle with small delocalization energy, formation of acceptor-donor structure, and strong electron-donating or electron-withdrawing abilities of substituents lead to the high third-order nonlinear optical property.

引入离域能小的芳杂环，形成吸供构型，增大取代基的吸或供电子能力等有利于获得较大的三阶非线性光学性能。

They act as electron-transport agents and play an important role in the electron-transport chains of respiration, photosynthesis, and the microsomal system responsible for the desaturation of fatty acids in heterotroph ic bacteria.

它们作为电子传递物在呼吸电子迁移链、光合作用及微粒体系统中起重要作用，它还负责异养细菌中脂肪酸的去饱和作用。你知道它的英文吗？

Because it requires a high quality electron beam, it was first demonstrated and developed on electron storage rings.

由于对束流品质要求很高，相干谐波自由电子激光首先是以储存环作为驱动器而发展起来的。

Alterations of matrix were searched by histochemistry, atomic force microscopy, scanning electron microscopy and transmission electron microscopy.

通过组织化学、原子显微镜检查法、扫描电子显微镜术和透射电子显微术来研究基质的变化。

New methods of measurements of specimen thickness and non-elastically scattering mean free path are proposed based on the electron holograph combining with electron dynamic diffraction.

而且，在电子全息照片和电子动力衍射相结合的基础上我们提出了一种测量电镜样品厚度和样品非弹性散射自由程的新方法。

Maintain deflector if the size of the same voltage, the voltage change is accelerating, we can see a very accelerated voltage reduce, electron beam deflection angle instead of increasing, it is because of low accelerating voltage, the electron velocity smaller horizontal direction, electronic deflection plates in the field of the role of the extended time, the angle of deflection increases .

如果保持偏转板的电压大小不变，改变加速极的电压，可以看到加速极的电压减小，则电子束偏转的角度反而增大，这是因为加速极电压低，则电子的水平方向速度变小，电子在偏转板中受电场力作用的时间加长，所以偏转的角度增大。

Report from our correspondent the electronic business affairs of traditional retail trade is breaking through last kilometer, the reporter learns, the traditional trade group of Guangzhou is in business affairs of active engraft electron, include business of Beijing grade family status circle, always terminal market of commerce of blessing road car, with white horse store, besides large trade group, include beautiful, Yi Chulian is flower, wide 100, friendship, with the mobile phone chain north is fought, communication of dragon another name for Guangdong Province platform of in full blast deploy electron business affairs.

本报讯 传统零售业的电子商务正在突破最后一公里，记者获悉，广州的传统商圈正在积极嫁接电子商务，包括北京路门户商圈、永福路汽车贸易批发市场，和白马商城，除了大型商圈，包括正佳、易初莲花、广百、友谊，和手机连锁北斗、龙粤通信等正紧锣密鼓地部署电子商务平台。

Based on the electron gun of SDS-3 electron beam lithography machine,the concave hyperboloid Wehnelt(oxide-coated cover)of accelerator is discussed.

以SDS-3电子束设备的电子枪为基础，讨论了双曲凹面加速器维纳尔的电子轨迹与能量分布。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。