It can be used in approaching curve, designing pattern, teaching demonstrate and drawing mechanicaldraft, topographic map and so on.
可用于曲线拟合、图案设计、教学演示以及绘制机械图、地形图和其他工程图样。
2
I will be doing a good job working, and keep on to study mechanical knowledge and 2d mechanicaldraft, to reserve sufficient knowledge in preparation for the opportunity.