1·The system did not have special rules to handle proper names and specific morphological structures such as reduplication and A-not-A construction.
这个系统没有特殊规则来处理固有名称和特殊的形态结构例如重复和“A不A”结构。
2·Abstract: the data redundant in relational database is caused by the reduplication of the table, attribute, record, or attribute value.
文摘:关系数据库的数据冗余形成的原因有表的重复、属性的重复、元组的重复、属性值的重复。