地面铺装在天正上的

Quick answer：

In the context of Tian Zheng (a CAD software for architecture and civil engineering), ground paving refers to the design and placement of materials on the ground surface. It is a crucial aspect of architectural and landscape design, involving the selection of materials such as tiles, concrete, or grass, and their arrangement to create a functional and aesthetically pleasing surface. This process typically includes considerations for drainage, load-bearing capacity, and environmental impact.