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Unionize the analysis of the inside and outside factors of restricting the electronic commerce development of enterprises, this paper summarizes the main existing problems electronic commerce development in this area, and proposes countermeasures of developing electronic commerce for the enterprises in Beijing Area, such as the government should play an positive role, the legislation should be speeded up, the enterprise should strengthen internal information construction and so on.

结合对制约企业电子商务发展的内外因素分析，总结该地区电子商务发展存在的主要问题。提出北京地区企业电子商务发展的对策，包括政府发挥积极作用、加快法制建设、企业加强内部的信息化建设等。

The phase constitution and structure of a partially stabilized Zirconia with yttria and magnesia have been investigated by means of electron diffraction, diffraction contrast image, X-ray diffraction and image simulation.

通过透射电子显微术、X射线衍射和电子计算机图像模拟等手段、对由Y〓O〓和MgO复合稳定的ZrO〓陶瓷—-PSZ的相组成和相结构进行了观察测定。在此基础上，对电子衍射谱中的漫散射现象进行了系统、细致的研究。

To ensure uninterrupted access to your email account, Amictools has introduced a handy application for Microsoft Windows based PCs, Amic Email Backup, to create backup copy of users' email database.

以确保不间断地获取您的电子邮件帐户， amictools推出了方便的应用，为基於Microsoft Windows的个人电脑， amic电子邮件备份，创建备份副本，用户的电子邮件数据库。

Under the model of local thermody n amic equilibrium, the electronic temperature of Cu plasma are deduced to be in t he 104 scale by the relative line intensities. Finally, space characteristics of electron temperature are obtained near the target, the strength and FWHM of N 500.52 nm spectral line are analysed.

在局部热力学平衡条件近似下，根据谱线的相对强度，得到了等离子体电子温度约在104 K以上，给出了靶面附近电子温度的空间演化规律，并探讨了N500.52 nm谱线的谱线强度和半高全宽随激光能量的变化规律标签激光烧蚀谱线展宽电子温度 Laser ablation Line-Broadening Electron temperature

Different e--donors and e--acceptors are incorporated at the phenyl ring of the benzothiazole to decipher the relationship between basicity of nitrogen atom and thermochromic phenomenon.

我们并且合成出其他不同的电子与体及电子受体的香豆素衍生物，来说明取代基的立体效应与电子效应对整个热致变色现象的影响。

In the second part of the work,quantum interference induced weak-localizationeffects as well aselectron-electroninteraction effects were investigated through magnetotransport measurementsfor highly doped n-ZnSe∶Clat metallic side of metal-insulator transition(MITgrown by MBE,withmagnetic fieldfrom 0 to 1T and temperaturefrom 0.3K to 30K.

第二部分对一系列分子束外延生长的高掺杂n-ZnSe∶Cl(位于金属绝缘体转变的金属一侧)在弱磁场(0到1T)以及低温(0.35K到30K)下进行了磁输运研究，以研究Anderson局域化，由于量子干涉效应引起的弱局域化效应以及无序存在时电子-电子相互作用效应。在所有样品中观察到了负磁阻并获得了其对温度，磁场以及电子浓度的依赖关系。

Photoinduced Electron Transfer [2+2] Cycloaddition Reactions ofBenzannelated Isoquinolin-1-ones with Electron Deficient Alkenes Photoinduced [2+2] cycloaddition reactions of 11H-benzoxazolo[3,2-b]isoquinolin-11-one 8 and 11H-benzothiazolo[3,2-b]isoquinolin-11-one 13 with electron deficient alkenessuch as acrylonitrile, methyl acrylate, dimethyl fumarate and dimethyl maleate afforded a group of polycyclic isoquinoline derivatives bearing cyclobutane moieties ingood to excellent yields and resulted in the Schenck isomerization of the alkenes.

3苯并增环异喹啉-1-酮与缺电子烯烃的光诱导电子转移[2+2]环加成反应 11H-苯并恶唑[3，2-b]异喹啉-11-酮8和11H-苯并噻唑[3，2-b]异喹啉-11-酮13与缺电子烯烃如丙烯腈，丙烯酸甲酯，富马酸二甲酯及马来酸二甲酯的光诱导[2+2]环加成反应以高产率给出一系列含有环丁烷结构单元的多环异喹啉衍生物并导致烯烃的Schenck异构化作用。

Then the empiristic model of the electron energy relaxation time and high field mobility can be got by the Monte Carlo simulation.

本文对ESD应力下超深亚微米NMOSFET器件内部载流子的强电场非本地输运进行了分析和研究，根据其特点可以将电子能量驰豫时间看作是电子能量的函数，然后使用蒙特卡罗模拟方法得到了电子能量驰豫时间和高场迁移率的经验模型，并使用新的参数模型加入ESD混合仿真平台，仿真结果与实验符合较好。

The economic potentiality is strong, the profit space big enterprise, the information construction and the electronic commerce develops quite well if the association group already has at present completed the supply chain link information, foundationally completed the development electronic commerce completely to work.

但是，网站增长与无效益之间的反差，电子商务交易的安全技术与可*性差，交易双方缺乏信誉等已经严重制约了我国电子商务的发展，电子商务的发展在中国面临着重重难关。

UNESCO awarded him the first Kalinga Prize in 1952 for his work in popularizing scientific knowledge, and he was elected a Fellow of the Royal Society on 23 April 1953. In 1961 he received the title of Knight of the Grand Cross in the Légion d'honneur.

同年 G.P。汤姆逊用较高能量的电子做了晶体对电子束衍射的实验，他让电子能量为1000－8000电子伏特的电子束垂直射入赛玛哈、金、铂或铝等薄膜上，观测产生的衍射图样。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。