It involves a series of HTML-like tags arranged in a treelike structure.
它包括一系列类似HTML的标记，并以树型结构来对这些标记进行排列。
The records in hierarchical databases are organized in a treelike structure, with each level of records branching off into a set of smaller categories.
层次型数据库按树型组织记录，每一层的记录分解成更小的属性集。
Composed of filaments or plates of cells, a thallus ranges in size from a single-celled structure to a complex treelike form.
原植体为丝状或片状，大小不一，小的仅数个细胞，大的形态复杂如树状。
Composed of filaments or plates of cells, a thallus ranges in size from a single-celled structure to a complex treelike form.
原植体为丝状或片状，大小不一，小的仅数个细胞，大的形态复杂如树状。
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