异构的

The results also show that subtituent position on the benzene ring has a great influence on the transfer volume. The trends of change of δ〓ΔΦ〓〓 for mand p-isometers with the composition of the mixed solvent are similar. However, the position and amplitude of the limit valve are different from each other. These are discussed according to the inductive effect and the resonance effect.

研究发现：取代基在苯环上的取代位置对迁移偏摩尔体积有明显影响，间、对位取代的异构体在DMF-水混合溶剂中的δ〓Δφ〓〓随混合溶剂的组成变化规律相似，但极值点的位置及幅度有所不同，根据诱导效应和共轭效应对此进行了讨论。

A uniform and abstract model for each category of web service is proposed. It gives a new resolution for web service searching and composition.

提出利用本体为Web服务按领域建立统一的、抽象的概念模型，为基於语义的服务查找和服务合成的异构问题提供了新的解决方法。

In this paper, a data integration platform based adapter is presented by an...

本文通过对基于适配器的异构系统集成技术的分析，结合组件技术的特点，提出了一个基于适配器的数据整合平台。

In this paper, the heterogeneity of resource is not discussed and the topic is on the focus of the access control issue in sharing mechanism. The system of information grid consists of heterogeneous administrative domain in which the access control mechanism and security policy are not uniform.

信息网格是一个由访问控制机制和安全策略不同的异构管理域组成的环境，不同的域可能有不同的访问控制目标和要求。

Because the olefinic hydroxyl groups are linked with olefinic carbon, so it can ionize H〓 ion and present the properties of weak acid, and so the olefinic hydroxyl groups change into the structure of alcoholate in the presence of alkali , but the structure of alcoholate may change into the structure of olefine alcohol again, after the Na〓 ions is removed, or when the pH value of its solution turn into pH. Because the structure of the olefine alcohol is not stable and is easy to isomerizate to become the structure of olefine ketone, so there appear the ca. 1730cm〓 C=O absorption peak in the IR spectra of the products.

明确指出了在C〓、C〓富勒醇中存在烯碳羟基与叔碳羟基等二类羟基，烯碳羟基由于与一个共轭体系相连，从而其羟基可以离解而呈现出弱酸的性质，因而在碱性条件下易形成烯醇钠盐的结构，当除去钠离子后或在酸性溶液中，烯醇钠盐结构转变为烯醇结构，但由于烯醇结构不如烯酮结构稳定，从而形成烯醇结构后，烯醇结构异构化为烯酮结构，因此在其产物的IR谱图上出现1730cm〓附近的C=0吸收信号。

However, there is little work reported on the separation ofα-olefins and other internal olefins.

对于不同烯烃之间的分离，特别是沸点相近的同分异构体烯烃之间的分离，国内外报道均不多。

Probucol and its sulphur-containing metabolite, but not a sulphur-free phenolic analogue, protected via cell-specifi c effects on inhibiting macrophage accumulation, stimulating reendothelialization, and inhibiting vascular smooth muscle cell proliferation.

普罗布考及它的含硫代谢物能够通过抑制巨噬细胞的聚集，刺激血管内膜再内皮化和抑制血管平滑肌细胞增生得到保护，而含自由硫原子的苯酚异构物得不到保护。

This articles main innovation is to have independently developed a set of distributional spatial data integration software from the first floor, has constructed the spatial information application service platform prototype based on the SIG frame city by using this software, and has solved the distributional isomerism space data conformity demonstration and in the client side realize to the far-end data operation and so on the essential technology.

本文的主要创新之处在于是从底层自主开发了一套分布式空间数据集成软件，利用该软件构建了基于SIG框架的城市空间信息应用服务平台原型，解决了分布式异构空间数据整合显示及在客户端实现对远端数据的操作等关键技术。

The results indicate that isomers P≡C-BH2 and CH3-C≡P containing C≡P triple bond are thermodynamically the most stable species in BH2-C≡P and CH3-C≡P systems, respectively.

结果表明，含C≡P三键的异构体BH2-C≡P和CH3-C≡P在各自的体系中分别是热力学最稳定的结构。

Beta molecule sieves has good catalytic activity in hdrocracking and hydrogenated isomerization, and good adsorption capacity to straight chain paraffin, and also capacity to avoid sulfur, nitrogen poisoning.

beta；分子筛具有很高的加氢裂化、加氢异构化催化活性和对直链烷烃的吸附能力，并有良好的抗硫、氮中毒能力。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。