jolt knee valve

例句：

1. 1.The jolt knee valve helps to prevent the knee from collapsing during exercise.
   冲击膝盖阀有助于在锻炼时防止膝盖塌陷。
2. 2. The doctor inserted a jolt knee valve to treat his patient's chronic knee pain.
   医生插入了一个冲击膝盖阀来治疗患者的慢性膝盖疼痛。
3. 3.During the surgery, the surgeon carefully placed the jolt knee valve to ensure proper function.
   在手术过程中，外科医生小心地放置了冲击膝盖阀，以确保其正常工作。