概要介绍了修建上元门越江水底隧道的意义、作用、方案概况及施工设想等。

The synopsis gives an introduction to the significance, functions, schemes as well as construction tentative ideas of building underwater tunnel at Shangyuanmen.

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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.

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介绍化学计量保证方案的概况、实施程序、作用和意义，展望了化学计量保证方案的前景。

The survey, implement program, effect and significance of the measurement assurance program is introduced and its prospect is forecast.

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