设计一个算法挖掘这样的有趣规刚，它的前件和后件分别属于不同的概念类，称这种规则为类间桥。
This paper designs an algorithm for mining a kind of as- sociation rules that the antecedent and action of such a rule belong to different conceptual classes, referred to class bridges.
结果表明：水体基本达到V类水质标准。水质污染轻重排序为阿及堡<和平桥<七间房。
The result showed that the water quality had basically reached water quality standard V grade.
结果表明：水体基本达到V类水质标准。水质污染轻重排序为阿及堡<和平桥<七间房。
The result showed that the water quality had basically reached water quality standard V grade.
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