文章主要介绍了数据仓库的概况，并以保险代理业务数据仓库为实例进一步提出了建立其数据仓库的概念模型和逻辑模型设计方案。
This paper mainly introduced the data warehouse, and as a insurance agency data warehouse for an example, we presented the concept model and logical model of the data warehouse.
康维尔拟定了非常详尽的设计方案，还制造了一个相同尺寸的模型，并在水箱中进行过测试。
Convair drew up detailed designs and even built scale models which were tested in water tanks.
本文介绍了保温管道经济评估优化设计方案和三个优化设计模型。
This article introduces an optimum scheme for economical assessment of pipeline insulation and three models of optimum design.
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