第二章，建立了零件族有限元模型快速变型设计的理论框架。
In Chapter Two. it cites the theory structure of the rapid variant design of part family's FEM model.
最后提出了基于事物特性表的零件族有限元模型快速变型设计的原理。
At last, the theory of the rapid variant design of part family's FEM model based on SML is given.
第三章，提出了基于事物特性表的零件族有限元模型实现快速变型设计的关键技术。
In Chapter Three, the key technology of realizing the rapid variant design of part family's FEM model based on SML is given.
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