The mathematics of fractals – very complex geometric shapes – is just what the doctor ordered, helping to capture the difference between the shape of a healthy cell and a cancerous one.

数学上的分形（fractals）是一种非常复杂的几何形状，这正是医生所要关注的，它是协助医生区分健康的细胞形态和癌变的一个重要特征。

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People's performance was soon restored by picture of trees, fields and hills, but not by streets, industrial units or even complex geometric patterns.

被试实验中的表现在观看树木、田地、小山后能够很快得到恢复，而观看街道、工业区、甚至几何图形都不能达到这样的效果。

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According to the characteristics of RP technique, a method of geometric modeling for complex surfaces is proposed.

针对快速成形工艺特点，提出了一种基于实物的复杂曲面几何重建的方法。

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Kilims are woven with many bright patterns and complex geometric forms.

VOA: special.2009.11.04

Using his understanding of complex geometric forms, Lang has played an important role in origami's evolution.

VOA: standard.2010.03.17