本文提出了舰船目标吨位识别的四维特征向量，设计出完整的二叉树分类器。

This paper gives characteristic vectors of four dimensions for target tonnage identification and design of binary tree classifiers pattern recognition.

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短线、勾、斜线或叉不会被机器识别。

Short lines, ticks, oblique strokes, or crosses will not be read by the machine.

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当我们考虑一种更具体的二叉树——二叉搜索树时，识别子结点是很重要的。

Identifying the child nodes is important when we consider a more specific type of binary tree-the binary search tree.

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