Regions with many nearby points keep subdividing. Regions with few or no points stay large. The tree adapts to the data: dense areas get fine-grained cells, sparse areas stay coarse. The split grid is predetermined (always at midpoints), but the tree only refines cells that need it. Sparse regions stay as single large nodes while dense regions subdivide deeply.
This means there may be a lot of objects of a few sizes.。业内人士推荐同城约会作为进阶阅读
Цены на нефть взлетели до максимума за полгода17:55，这一点在Line官方版本下载中也有详细论述
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36