It is proved that with the accumulation of more available information, the lower and upper approximations will provide a more refine description of the concept.
证明了随着可利用信息的不断增加，上下近似对概念的描述也更精确。
It is proved that with the accumulation of more available information, the lower and upper approximations will provide a more refine description of the concept.
证明了随着可利用信息的不断增加，上下近似对概念的描述也更精确。
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