Absrtact: The most key technique of hammer throwing is spinning technique.

摘要：旋转技术是掷链球技术中最关键的环节。

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Absrtact: Quality is the most important thing in software project in Japan.

摘要：日本在软件项目开发上强调质量第一。

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Absrtact: Presents a method of clustering based on mining association rules.

摘 要： 提出了一种基于关联规则挖掘的聚类方法。

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