Error analysis may be carried out in order to obtain information on common difficulties in language learning, as an aid to teaching or in the preparation of teaching materials.
进行分析的原因是为了获取有关语言学习者普遍难点的信息，作为教学或准备教学材料的一种辅助方式。
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。
It gives a brief introduction and analysis of compiling features and the main structure of the teaching materials.
主要对教材的编写特点和基本结构进行了介绍和分析。
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