听人说，雪花有六瓣的，也有五瓣的。
Hear people say, the snowflakes have six, there are five of.
百合科是植物里的一大科，特征为六瓣花苞，有六雄蕊，上子房有鳞状或根状茎。
A large family of plants, the Liliaceae, characterized by showy flowers with six perianth segments, six stamens, and a superior ovary and usually producing bulbs or rhizomes.
以结晶器出口处铸坯形状为判定依据，六瓣状结构明显优于两瓣、三瓣和四瓣结构。
The simulation results show that the models with different petals influence on the shape of billets in the mould exit obviously.
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