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1)  Heterogeneity definition
异构性定义
2)  Heterogeneous concept treatment
语义异构性
3)  constructive definition
构造性定义
1.
By applying tile theory concerning foe calculus and adopting views and methods of the mathematical analysis, the constructive definition of the exponential function is given out and the rigorous proof on its qualify is given which can make students have a recognition of the ex ponential function.
运用微积分的有关理论,用数学分析的观点和方法,给出指数函数的构造性定义,对其性质给出严格的证明,使学生能从微积分的角度对指数函数有一个再认识。
4)  structure with defined attribute
定义属性结构
5)  stabilization of the isomer
异构体的稳定性
1.
Meanwhile, it was found that the stabilization of the isomers of the compounds was not noly dependent upon the structure of compounds but also on the medium.
同时,结果表明,化合物异构体的稳定性不仅取决于化合物本身的结构,而且还取决于介质环境的影响。
6)  semantic heterogeneity
语义异构
1.
In order to solve the problem of semantic heterogeneity in information integration,an ontology based semantic information integration(OSII) model and its logical framework are proposed.
针对信息集成中的语义异构问题,提出了一个基于本体的语义信息集成模型OSII,并给出了逻辑框架。
2.
In the process of information integration,ontology solved the semantic heterogeneity problem of heterogeneous and autonomous data.
在信息集成过程中,本体解决了异构信息的语义异构问题,实现了信息语义上的互操作。
3.
In order to resolve the semantic heterogeneity of data sources,a kind of the heterogeneous data integration system based on XML is proposed.
在XML技术基础上,提出一种基于本体的异构数据集成系统,用来解决数据源之间的语义异构问题。
补充资料:顺-反式异构体(cistrans isomer),1,2,4异构体
分子式:
CAS号:

性质:又称顺-反式异构体(cistrans isomer),1,2,4异构体或1,2,6异构体(1,2,4 isomer;1,2,6 isomer)。八面体配位化合物中,六个配体分别为3个A(如图中Cl:A1,A2,A3)和3个B(如图中Py:B1,B2,B3)(图暂缺)。当三个相同的配体中的两个(如A1与A3或B1与B3)互为反式,第三个(如A2或B2)与这两个A1与A3或B1与B3)均为顺式,这样的排布的异构体即为经式异构体。

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