换句话说，就是重复利用巴恩·斯利蕨类公式所产生的随机数可以形成一个蕨类形状的独特物体。
In other words, random Numbers generated over and over using Barnsley's fern formula ultimately produce a unique fern-shaped object.
在这个深入的过程中，那种可以识别的形状在这以数学公式为模型的结构中单独地以及成群结队地在四处重复出现。
As one progresses downward, the recognizable fractal shape is evident, singly and as large groups of the same fractal shape repeated throughout the structure of the mathematical equation modeled.
从性能方面考虑，我们不希望服务器重复从磁盘中读取工作簿，或者在不需要重新计算时重新计算公式。
For performance reasons, we do not want the server to read the workbook file from disk again, or to recalculate formulas that do not need recalculation.
应用推荐