projective centre

例句：

1. 1.The projective centre is the point of convergence for all lines in a three-dimensional space.
   投影中心是三维空间中所有直线的交点。
2. 2. The projective centre is crucial for understanding the spatial relationships between objects.
   投影中心对于理解物体之间的空间关系至关重要。
3. 3.In the design of a new building, the projective centre plays a significant role in determining the optimal layout of rooms and corridors.
   在新建建筑的设计中，投影中心在确定房间和走廊的最佳布局方面起着重要作用。