我需要确定某个数字是不是完全数。

I need to determine if a number is perfect.

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为此，我选择了完全数。

To that end, I've chosen perfect Numbers.

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粗糙集理论是一种新兴的处理不精确、不确定与不完全数据的数学理论。

Rough Set is a new mathematics theory that can deal with incertitude and incompletion data.

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使用完全数据库备份模型时，恢复数据需要这些备份。

These backups are necessary for recovering data when you use the full database backup model.

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该方法是完全数据驱动的，不需要姓名识别模板和规则。

This approach is data-driven without any template or rule.

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完全数、相亲数以及孤立数一直是数论研究的一个重要课题。

Perfect number, amicable number and anti-sociable numbers are important topics in number theory.

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人类在研究与寻找完全数时得到结论：偶完全数与梅森素数是一一对应关系。

Many important conclusions in relation to even perfect number research have been drawn.

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人类在研究与寻找完全数时得到结论：偶完全数与梅森素数是一一对应关系。

Many important conclusions in relation to even perfect number research have been drawn.

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