While this may seem to be directly analogous to a relational database's key mechanisms, there's one important difference: Most parsers treat these Pointers as unidirectional.
虽然这也许看来直接类似于关系数据库的键机制，但是有一个重要的差异：大多数解析器都将这些指针看作是单向的。
An associated relational database stores Pointers and promotes easy data access to and through the datastore.
关联的关系数据库存储着指针并提供对数据库的简单数据访问。
An associated relational database stores Pointers and promotes easy data access to and through the datastore.
关联的关系数据库存储着指针并提供对数据库的简单数据访问。
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