relationism关系本位relationn.关系；联系；亲戚；陈述；参考Relation of China and Russia中俄关系relation of heart and object心物关系relation database management[计] 关系数据库管理relation between generations代际关系Relation of Human's Identityrelation of direct proportion反变关系relation of genus and species属种关系relation between Tian and man天人关系relation between ear and lung耳肺关系relation direct access method关系直接存取法