特写镜头：履带式挖掘机配备液压锤在建筑工地上作业。挖掘机正在清理被拆除房屋的残骸。

cept of constructing new apartment buildings on the site of old houses. Close-up of a crawler excavator with a hydraulic hammer working on a construction site. The excavator is clearing away the remains of a destroyed house. Remains of a demolished old house. The concept of constructing new apartment buildings on the site of old houses. High quality 4k footage.