专门化的题目组和关系表指定横切在主题层次结构上的相关关系。
Specialized topic groups and relationship tables specify related-to relationships that cut across the subject hierarchy.
通过构效关系研究，发现某些电子结构指数与毒性之间存在较好的相关关系。
It was found that there are remarkable correlation relationships between some indices of electronic structure and the toxicity by the studies of structure-activity relationship.
家庭结构模式与家庭保障功能之间存在着密切的相关关系。
The function of family security is closely related to the modes of family structure.
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