All types of educational practices exist in the three-dimensional framework of nature, society and human thinking.
任何类型的教育实践活动都存在于自然、社会和人的思维三维空间的框架里。
The general framework and prototype system for synthetic design of dimensional and geometric tolerance based on three- dimensional CAD system are established.
给出了基于三维CAD系统的计算机辅助尺寸公差和形位公差综合设计的总体框架和原型系统。
We found that the three - dimensional muscular microcirculatory vessel framework was formed by crisscross and overlapping of microcirculatory vessels.
骨骼肌微循环血管纵横交错，交措折叠形成肌肉的微循环血管立体网架；
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