In a rocky quarry, a large hydraulic excavator with a long臂膀 is parked on a road made of碎石. There is a mountain of dark rocks in the background. The巨型挖掘机 is yellow and black, and its履带 are very wide. It has a驾驶室 at the top, and a large bucket at the front. The bucket is used to dig and move rocks and earth. The excavator is a powerful machine that is used in construction and mining.