统一资源标识符(Uniform Resource Identifiers, URI)为标识Web中的资源定义了一种标准系统，这些资源包括html页面、XML文档、图像、多媒体文件等等。

Uniform resource Identifiers (URIs) define a standard system for identifying resources on the Web, including HTML pages, XML documents, images, multimedia files, and more.

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在分布式多媒体系统中，连续媒体流采用压缩方式传输，以减小最昂贵资源网络带宽的使用。

The continuous media stream is usually transmitted with compression in order to reduce networks bandwidth, the much expensive resource, in distributed multimedia systems.

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积件是由教师和学生根据教学需要自己组合运用多媒体信息资源的教学软件系统。

Integral ware is a software system, by which teachers and students can use multimedia information source freely in the need of instruction.

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