Rough set theory is a new mathematical approach to deal with vagueness and uncertainty.
粗糙集理论是一种处理模糊和不确定性问题的新的数学方法。
Rough set theory is a new mathematical tool to deal with fuzzy and uncertain information.
粗糙集理论是一种新的处理模糊性和不确定性知识的数学工具。
The mathematical model is set up, then the structures of hardware and software are described.
先介绍建立数学模型，再介绍该系统的硬件和软件的结构。
Rough set is a mathematical approach to study imprecise, uncertain or incomplete information or knowledge.
粗糙集是研究不精确性、不确定性、不完整性现存信息或知识的数学工具。
Rough set theory is a new mathematical tool to deal with vagueness and uncertainty.
粗糙集理论是一种新的数学工具来处理模糊性和不确定性。
And the mathematical model is set up to describe active lap manufacture.
由此得到用于描述能动磨盘加工的数学模型。
Methods: To set up mathematical model.
方法：建立数学模型。
Another reason is the application of mathematical induction set thinking.
另一个原因是数学归纳法应用中的思维定势。
Absrtact: Rough set theory is a new mathematical tool to research imprecise and incomplete data.
摘要：粗糙集是用来处理不确定、不完备数据的重要工具之一。
Absrtact: Rough set theory is a new mathematical tool to research imprecise and incomplete data.
摘要：粗糙集是用来处理不确定、不完备数据的重要工具之一。
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