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Data mining is extraction of interesting knowledge from data in large databases or data set.
数据挖掘是指从大型数据库或数据集的数据中提取人们感兴趣的知识。
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Mining method of oil extraction by the open and underground mining.
石油的开采办法由露天开采和地下开采。
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Mining method of oil extraction by the open and underground mining.
石油的开采办法由露天开采和地下开采。
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