Tianzheng can be paved on the ground

Quick answer：

Tianzheng is likely a term referring to a type of flooring or construction material. Ground paving typically involves laying materials such as concrete, asphalt, or tiles over a base to create a flat, durable surface for walking or driving. The term 'Tianzheng' could indicate a specific brand or product used for this purpose. More information would be needed to provide a detailed description.