This paper introduces the system structure of USB KEY: the hardware layer, the core driver layer, the standard middle-ware layer and the application layer.
本文介绍了USB KEY的体系结构，由硬件层、核心驱动层、标准中间件层和应用层构成。
Process automation system for Laiwu Steel 1500 mm hot strip mill is described, include system figuration, network, functions of middle ware and application.
介绍了莱钢1500热轧带钢过程自动化系统，包括系统配置、网络结构、中间件和应用软件的主要功能模块。
We use middle ware to develop the prototype system so it's platform independent and can be used in distributed environment. This also has reduced the developing difficulty and intensity.
我们采用中间件进行开发，原型系统既具有平台无关性，能在分布式环境中工作，又减低了开发强度和难度。
We use middle ware to develop the prototype system so it's platform independent and can be used in distributed environment. This also has reduced the developing difficulty and intensity.
我们采用中间件进行开发，原型系统既具有平台无关性，能在分布式环境中工作，又减低了开发强度和难度。
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