工程师们通过计算该区域的质心来确定桥梁的最佳支撑点。

The engineers determined the best support point for the bridge by calculating the ___centroid of the area.

在地图上，研究人员用红点标记了这些房屋数据的质心位置。

On the map, researchers marked the ___centroid of these housing data with a red dot.

计算均匀圆盘的质心时，你会发现它的质心恰好位于圆心。

When calculating the ___centroid of a uniform disk, you'll find it exactly at the center.