许多媒体公司认同这种产品成品更高的原则。
In many media businesses it is an accepted principle that such products cost more.
文章提出了多媒体网络教室的构造原则，网络结构和软硬件组成，以及网络教室主要功能的具体实现方法。
This paper gives out the principle of the building of multimedia net classroom, the net structure, the form of software and hardware, and the realization method of primary function of net classroom.
阐述了矿井多媒体综合业务数字网络系统的设计原则，网络结构及主要功能。
The paper stated the design principle, network structure and main functions of the mine multi media ISDN digital network system.
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