Look at a fern leaf, a cauliflower, and a magnified snowflake to see this distribution of sizes graphically.
看看蕨叶、菜花和放大的雪花，我们能从图形上看到尺寸的分布。
And builds some mathematics models. Using these models and methods, some nature scenes are simulated successfully, for example: terrain, tree, leaf and fern etc.
利用以上方法，建立一些描述具体自然对象的数学模型，成功地模拟了山峦、树木、树叶和蕨类等自然景物。
The lotus leaf fern Adiantum growth conditions of the study also stay in more qualitative analysis.
对于荷叶铁线蕨生长条件的研究也多停留在定性分析上。
First, they erect four wooden pillars painted with fern leaf veins.
首先，在平坦的场地上树起四根绘有蕨叶纹的木牌柱。
First, they erect four wooden pillars painted with fern leaf veins.
首先，在平坦的场地上树起四根绘有蕨叶纹的木牌柱。
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