a machine for making the surface of snow smoother, flatter, or harder so it is easier to ski or walk on

They have snow-making equipment and grooming machines.

The resort's prepared pistes are superb, with pristine snow furrows left by the grooming machines. 该度假村准备好的滑道非常出色，使用压雪机修整后，雪道上留下了干净的凹槽。