This paper starts with the analysis of its contents and makes a primary study of its significance and practice, expecting a further discussion of the world of physical education.
文章以拓展训练内涵的分析为切入点，就开设拓展训练课的意义以及实施的构建作了初步的探讨，以期引起体育界同行的关注。
This paper gives further analysis and research on the process of tinsel, makes improvement on the present machine, proposes amore reasonable hammering trail, and design a feeding for this trail.
对金属箔加工工艺进行了深入地分析和研究，对现有的金属箔加工机进行了改进，提出了较合理的金属箔加工的锤击轨迹，并设计了实现该轨迹的进给装置。
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