机械制图实践性很强,又很抽象,作为中职校的学生学起来很有难度。从它的特点着手,从教学实践出发,阐述如何通过“三多”训练使学生在轻松愉快的氛围中取得较好的学习效果。 Mechanical drawing strong practical, very abstract, as a vocational school students learn very difficult. Proceeding from its characteristics, starting from the teaching practice, it expounds how to make the students achieve better learning results in a relaxed and pleasant atmosphere through training of more than three.