LatheGeometry（车削几何体）：
陈润庭的父亲从这条线索出发，辗转找到了杜耀豪外祖父所属的村庄，并在那里找到了保存完好的族谱。“把杜耀豪一世祖到十八世祖，整个序列都给他查了出来。”陈润庭回忆。
，更多细节参见同城约会
1. 根据数据范围创建若干个桶
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When the track ends—detected either via the ended event or via the stall watcher noticing the currentTime approaching durationit will collect chunks that are stitched together: