One common treatment for kidney stones -- called lithotripsy -- breaks up larger stones into smaller ones.

常见的肾石治疗方法石术，指将较大的石分解开来。

Extracorporeal shock wave lithotripsy uses high-intensity pulses of focused ultrasonic energy aimed directly at the stone.

击波石术使用聚焦超声能量的高强度脉直接瞄准石。