英语语法分析

We also investigate chromatic polymial of graph by its cyclomatie number, and verify unimodality of chromatic polymial of some graph.

我们又用基回数考察了图的色多项式，验证了某些图类的色多项式的单峰性。

The focus measures are drived from the paraxial geometric optics model. All these focus measures have good monotonicity and unimodality.

利用近轴几何光学模型推导出焦距标度，这些焦距标度都具有良好的单调性和单峰性。