This paper has the following innovations. Firstly, we introduce the idea of two-level modeling and the concept of metadata into content management system, and create the prototype of content management system based on two-level modeling.
本文从这些不足出发,将二阶建模的思想引入内容管理系统,提出基于二阶建模的内容资料库模型,并实现了基于二阶建模的内容管理系统的原型。
参考来源 - 基于二阶建模的内容管理系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Based on the thought of variable-complexity modeling in multidisciplinary design optimization, a two level variable-complexity model is established with the background of moon exploring satellite.
本文依据多学科设计优化中可变复杂度建模的思想，以月球探测卫星为背景型号建立了卫星的两级可变复杂度模型。
The characteristics of fluid flow in the mould of two ports SEN and four ports SEN have been compared and the influences of SEN on the level fluctuation are investigated by water modeling experiment.
比较研究了薄板坯连铸用二孔型水口和四孔型水口流场特征，水模试验结果表明，采用两种水口的薄板坯结晶器流场均存在非稳定性现象。
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