Some computer scientists already talk of the birth of “societal information-technology systems”, or SIS.

一些计算机科学家已谈到“社会信息技术系统（SIS）”的诞生。

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The supervisory information system(SIS) and its database platform PI(plant information)real-time database, data flow and point building technology in PI database are introduced.

介绍了厂级监控信息系统（SIS）及其数据库平台PI实时数据库、PI数据库中的数据流程以及PI数据库的建点技术。

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This paper discusses a technology of Direct Network Access, and researches a real-time data-importing system based on Direct Network Access for Supervisory Information system (SIS).

本文探讨了直接网络访问技术，并针对电站监控信息系统(SIS)的数据接入问题，提出了一种基于直接网络访问技术的实时数据接入系统方案。

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