We provide learning materials from multiple sources and through multiple media, such as paper-based, digital, audio, visual etc.
我们会提供纸质的、数字的、听力的、视频的等多种媒介的教学资源。
In this paper the principle of phase-change media for erasable optical disk and the materials required are discussed in detail.
本文对可擦除相变光盘的工作原理及其材料的要求进行了详尽的论述。
This paper describes researches and developments of a multi media teaching software for view and analysis of metallographical structure of metal materials by computer network.
研究开发了基于计算机网络教学的多媒体金相组织观察与分析教学软件，在系统内容组织和素材的选取上充分考虑了金相教学的特点和要求。
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