The structure of preform is described, the processing parameters are predicted in theory and the designs of functional and structural composites are provided by the method of topological analysis.
本文用拓扑分析方法，对预制件结构做了说明，并对工艺参量进行了理论预测，为设计功能复合材料和特殊结构复合材料提供了新的手段。
The structural stabilities and electronic structures of W atomic chains are studied by employing first-principles plane wave pseudopotential method based on the density functional theory.
使用基于密度泛函理论的第一原理平面波赝势法，研究了W原子链的结构稳定性和电子结构性质。
Based on the fractal theory, the paper expounds the structural fractality, process fractality and functional fractality in enterprise system.
根据分形理论，分析了企业系统中存在的结构分形、过程分形及功能分形特征。
Based on the fractal theory, the paper expounds the structural fractality, process fractality and functional fractality in enterprise system.
根据分形理论，分析了企业系统中存在的结构分形、过程分形及功能分形特征。
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