In this paper, the sample database for data mining is designed by analyzing historical data of raw cotton property and spinning yarn quality.

通过对原棉性能及成纱质量历史数据的分析，建立了用于数据挖掘的样本库。

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Based on the historical and present monitoring data, the underwater topography, deposits, pollution sources and water environment quality of Kuncheng Lake of Changshu City were studied.

结合历史数据和现状调查，对常熟市昆承湖水下地形、沉积物、污染源和湖泊水环境质量现状进行了研究。

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Based on a great amount of historical data to analyze the evolution of Guangzhou reach of Pearl River and the changes of water environmental quality qualitatively and quantitatively.

通过大量的历史数据，对珠江广州河段的演变和水环境质量的变化作了定性、定量分析。

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One of the major battles is over the quality of historical data, and whether or not hurricane statistics are being inflated by nonclimatic forces.

FORBES: Bringing Some Empirical Sense To All the Hurricane Hype