The "pyramid model" conception of products structure is raised, the way of creating product pyramid is analyzed from the aspects of technology, product management and material supply.
提出了企业产品结构“金字塔”的模式构想，并从技术、产品管理、原料供应方面分析了创建产品金字塔的方式方法。
The model is a graph including a set of feature nodes which forms a generalized semantic net with a pyramid-like structure.
模型由包括有一整套特征节点的树图组成，构成一类金字塔结构的广义语义网络。
The model is a graph including a set of feature nodes which forms a generalized semantic net with a pyramid-like structure. The feature resolution increases as the pyramid levels propagating down.
模型由包括有一整套特征节点的树图组成，构成一类金字塔结构的广义语义网络。
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