Further, the paper study modular assembly design in the conceptual design step, and make assembly constraint modeling through constraint classification.
进一步研究了概念设计阶段的模块化装配设计，并在分析了装配约束分类的基础上实现装配约束建模。
The limitations of models and classification of models were reviewed, and methods of modeling were discussed in this paper.
本文介绍了预测微生物学模型的局限以及分类，并对建模方法进行了讨论。
The problems of neutral-data description and product classification structure are the key techniques in product information modeling oriented to the distributed business of virtual enterprises.
中性数据描述和产品分类结构问题，是面向虚拟企业等分布业务的产品信息建模的关键技术。
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