conceptual feature selection 概念特征抽取
This feature reduces the conceptual weight of Roo and makes it an excellent learning tool.
该特性减少了Roo的概念权重，使其成为一个优秀的学习工具。
This might seem odd, but "function factories" are a familiar feature of Python, and "generator factories" are an obvious conceptual extension of this.
这可能看起来有点古怪，但“函数工厂”是Python的常见特性，并且“生成器工厂”明显是这个概念性扩展。
This paper addresses the following techniques: product modeling in conceptual design, virtual feature generation, and some important implementation techniques of them.
本文着重研究虚拟原型技术中的两个关键问题：产品概念设计建模、虚拟特征生成及其主要实现技术。
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