From a developer's point of view, the challenge is how you can tackle these issues by using the structure of the EPUB.
从开发人员的角度讲,挑战是在于如何使用EPUB的结构来解决这些问题。
In addition, we add a bit string to each node in the tree to store the prefix of the items. By using the structure we can avoid repeatedly traversing the sub-tree while expanding the patterns.
除此之外,算法对频繁模式树中每个节点增加一个位串来存储该项目的前缀项目,以避免在模式扩展的时候频繁的遍历子树。
The component has simple structure and reliable motion by using hydraulically powered swinging townet rods to drive the townet.
这一组件采用液压驱动的摆动网杆带动拖网,结构简单,动作可靠。
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