The article fifth rules have given this system's major function movement contact surface chart.
文章的第五章则给出了本系统的主要功能运行界面图。
Master CAD drawing, knowledge chart, the 3 d modeling, curved surface has the certain basis;
熟练掌握CAD制图、识图，对三维建模、曲面有一定的基础；
Master CAD drawing, knowledge chart, the 3 d modeling, curved surface has the certain basis;
熟练掌握CAD制图、识图，对三维建模、曲面有一定的基础；
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