It pointed out that relation mode could be organized by sequential traversal of hierarchy tree structure.
It pointed out that relation mode could be organized by sequential traversal of hierarchy tree structure.
方法指出将层次树状结构顺序遍历，组织成为关系模式。
It pointed out that relation mode could be organized by sequential traversal of hierarchy tree structure.
方法指出将层次树状结构顺序遍历，组织成为关系模式。