The xop: Include element contains an attribute information item with a link to the part of the xop package that carries a binary representation of the data removed from the original element.
Include元素包含一个属性信息项，带有指向xop包部分的链接，xop包承载从原始元素中删除的数据的二进制表示。
This algorithm scans the data base only once and the speed of binary operation is faster than the speed of comparison of item sets and transactions.
此算法只扫描一遍数据库，并且二进制数的位运算速度比候选集与事务记录的比较运算速度要快得多。
This algorithm scans the data base only once and the speed of binary operation is faster than the speed of comparison of item sets and transactions.
此算法只扫描一遍数据库，并且二进制数的位运算速度比候选集与事务记录的比较运算速度要快得多。
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