With the expanding of GIS application, multi-user concurrent operation becomes the basic demand for spatial data engine.

随着GIS应用的扩大，多用户并发操作成为空间数据引擎的基本要求。

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This paper has introduced the basic structure and implementation method of a control system of multi- user electric energy measurement based on single- chip computer of Philips.

这里介绍了基于飞利浦单片机的多用户电能计量控制系统的基本结构及实现方法。

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We're not talking about the core multi-user functionality or the companion app here (more on that later), just the basic desktop environment.

ENGADGET: Hands-on with MiiPC, the $99 kid-safe Android PC (video)