This paper probes into the concept, attribute, operation base and building model of public logistics information service platform (PLISP) and also gives a solution to PLISP.

文章对公共物流信息服务平台(plisp)的概念与属性、运作基础、建设模式进行了探讨，提出了PLISP的解决方案。

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Although it is easy to define the basic constructs of the ER model, it is not an easy task to distinguish their roles in building the data model. What makes an object an entity or attribute?

虽然建造基本的ER模型是很容易的，但是区别他们在建设数据库时所处的地位并不容易，什么决定了一个对象是实体还是属性呢？

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According the evaluation system for systematical energy efficiency of building, the mathematics model combining analytical hierarchy process and attribute mathematics has been established.

依据建筑系统节能评价的指标体系，建立了基于层次分析法和属性数学原理的数学模型，对建筑系统节能效益进行定量评价。

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