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

常见石治疗方法是碎石，是指将较大石分解开来。

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

体外冲击波碎石聚焦超声能量高强度脉冲直接瞄准石。