Teaching of engineering drawing to make constructivism instruction have very good realistic meanings, receive the result of twice with half the effort.

用建构主义指导工程制图的教学具有很好的现实意义，可收到事半功倍的效果。

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The problems how to develop the advantages of traditional teaching scheme and MCAI teaching scheme and how to avoid their shortages in te class teaching of engineering drawing are urgent for solution.

在运用MCAI进行工程制图面授教学中，如何充分发挥传统教学方式和MCAI教学方式中各自的优势克服其不足的问题是当前运用MCAI教学过程中急待解决的。

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Aiming at the shortage of the current real model in the teaching for engineering drawing, this paper deals with the research and development of a virtual model lab.

针对目前工程图学教学中实物模型使用的局限性，研究了工程图学教学虚拟模型室。

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