The snowflake is a crystalline substance in the shape of a regular hexagon. 雪花是正六边形的结晶体。
A layered network architecture based on regular hexagonal cells is introduced, and the optimal layers are studied in given monitoring areas. 提出了一种基于正六边形网格的分层网络结构,研究了在监测区域面积给定情况下的最优网络分层问题。