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The valence electron structure of Fe_2B phase was studied on the basis of Yu's empirical electron theory of solids and molecules.The values of valence electrons on every bond in an atomic coordinate cluster were calculated by the method of bond length difference.

根据固体与分子经验电子理论对Fe_2B相的价电子结构进行了定量分析，通过键距差方法计算了Fe_2B晶体配位团各键上的共价电子数。

To study the effects of factors such as electromagnetic field and electron temperature on the ion extraction characteristics (extraction time, collision loss ratio) in atomic vapor laser isotope separation, 2-D electron-equilibrium model was used to analyze and simulate the ion extraction process.

为研究各因素对原子蒸气激光同位素分离中离子引出特性的影响，采用二维流体理论电子平衡模型分析计算了引出过程中外加恒定电磁场和电子温度等因素对离子引出特性的影响。

ABSTRACT The technique of melting refractory metal with electron beam is widely used in many fields, for example, vacuum coating, electron beam machine and AVLIS (atomic vapor laser isotope separation), etc.

电子枪加热熔化难熔金属技术在众多的领域中得到广泛的应用，例如真空镀膜、金属切割加工和激光原子法分离同位素（Atomic Vapor Laser IsotopeSeparation，缩写为AVLIS）等。

Auger electron spectroscopy, scanning electron microscopy and atomic force microscopy are used to analyze component and surface morphology of the films.

用俄歇电子能谱、扫描电镜和原子力显微镜对薄膜的组成成分和表面形貌进行了分析。

Effect of carbon and nitrogen on microstructure and properties of austenite weld metal were studied by scanning electron microscope, transmission electron microscope and other methods.

采用扫描电镜和透射电镜等分析研究了碳、氮元素对奥氏体焊条熔敷金属组织和性能的影响。

The morphogenesis and some important characteristics in the course of reproduction of two kinds of pathogenic virus of Hemorrhage of Grass Carp, Reovirus and Picornavirus.in fish cell culture were studied by means of electron microscope and electron microscopic autoradiography.

应用电子显微镜和放射自显影术，观察草鱼出血病两种病原病毒——草鱼呼肠孤病毒和草鱼小RNA病毒在鱼类细胞中的形态及增殖过程的一些重要特征。

The abnormal block and black round structure of 50 axletree steel was studied and analyzed using optical microscopy, transmission electron microscopy, electron probe and so on.

产生这种组织的主要原因是50车轴钢锻造后混晶现象严重及存在特别粗大晶粒。

Chemical energy is the atom's outer electron changes cause changes in the electron binding energy release of energy.

化学能是原子的外层电子的变动引起电子的结合能变化而放出的能量。

Using bipartition model of electron transport proposed by applicants, combined with Fermi-Eyges theory, a new pencil beam model, hybrid electron pencil beam model, was proposed.

应用申请人提出和发展的电子输运两群理论并结合Fermi-Eyges理论，提出了一个新的笔束模型—电子混合笔束模型。

The 1s electron cloud in hydrogen atom has the largest probability density distribution around a spherical shell with Bohr radius a 0. The author thinks the probability density distribution and electron cloud belong in fact,to statistic regularity, and imply a macro-time scale is used, therefore in hydrogen molecule the product of energy and time is far larger than Planck Constant.

氢原子中 1s电子的电子云呈球形，电子的最大几率密度分布出现在玻尔半径a0 的球壳内，认为几率密度分布及电子云属统计规律，意味着已经使用了宏观时标，这样就使氢分子体系中能量和时间的作用量远大于普郎克常数；根据电子云的交叠，用经典力学计算了基态氢分子的结构常数，获得键长、键能及力常数的表达式分别为Re=2a0 ，De=ze/4 2a0 ，k=ze/2 2a30 ，采用原子单位 a 。u 。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。