percussion

n. 撞击(碰撞,振动,击发,叩诊)

A small firework consisting of some gravel wrapped in tissue paper with a percussion cap that explodes when thrown against a hard surface.

掼炮一种由草纸包住一些砾石制成的小型鞭炮，其打火帽在与坚硬表面撞击时发生爆炸

Percussion instruments or their players considered as a group.

把打击乐器或他们的演奏者看成一组