在球面上，两点之间的最短距离是测地线。

On a sphere, the shortest distance between two points is a ___geodesic.

这个球形建筑采用了网格穹顶结构来增强稳定性。

The spherical building uses a ___geodesic structure for enhanced stability.

这座公园的凉亭采用了独特的测地线框架结构。

The pavilion in this park features a unique ___geodesic framework.