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The grid lines on the visualization represent a tree structure underneath. Every region is a node. When a node splits, it creates four children. The root node covers the entire space. Leaf nodes (nodes with no children) hold the actual points.
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类似：从一堆牌中每次挑出最小的放左边
所有车辆的平均SoH为95.15%。按车龄细分的平均数据如下：