Some key technologies of the founding of 3d CAD model are advanced on the base of the practicing design experience on the development of the system in the third part.
第三部分根据系统开发的实际设计经验，提出了建立三维CAD模型的一些关键技术。
Women of the Central Base played a very important role in the New Democracy, and the improvement of women's status acted an energetic part in women development.
中央苏区妇女地位的提高，在中国妇女运动史上写下了光辉的一页。因而，研究中央苏区妇女地位的演变是十分有意义的。
Women of the Central Base played a very important role in the New Democracy, and the improvement of women's status acted an energetic part in women development.
中央苏区妇女地位的提高，在中国妇女运动史上写下了光辉的一页。因而，研究中央苏区妇女地位的演变是十分有意义的。
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