geometrical feature的用法和样例：
例句
- The geometrical characteristics analysis of grain is the important base of metallographical analysis.
晶粒的几何特征度量是金属性能分析的重要基础。 - This paper proposes an approach exploiting geometric features in conjunction with apriori knowledge to search coplanar visual cues to estimate depth.
本文就侧重分析人在识别物体过程中使用的几何特征和先验知识，提出在人造几何物体图片中搜索共面线索进而实现深度信息猜测的算法。
