high frequency electrotherapy

例句：

1. 1.The patient was treated with high frequency electrotherapy for several weeks.
   患者接受了几周的高频电疗法治疗。
2. 2.High frequency electrotherapy is an effective treatment for chronic pain.
   高频电疗法是慢性疼痛的有效治疗方法。
3. 3. During the treatment, the patient experienced significant relief from his symptoms.
   在治疗期间，患者的症状得到了显著缓解。