The three research focuses are the main factor that constructs the object system of teaching material study.

这三个研究重心构成了教材研究对象系统的三大要素。

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The new teaching material regards training students' communication ability as object, and to "say" it is the most direct communation means.

新教材以培养学生的交际能力为目的，而“说”是最直接的交际手段。

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The paper presents an introduction to the practical application of the 3 audio - visual object teaching methods (material object, demonstration and analogue image) for technical courses.

本文介绍了实物直观、演示直观、模象直观三种直观教学法在电子技术课教学中的具体运用。

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