ear axis

例句：

1. 1. The doctor examined the patient's ear axis and found no signs of infection.
   医生检查了患者的耳轴，没有发现感染的迹象。
2. 2.The new hearing aid uses an ear axis that is adjustable for different ears.
   这款新的助听器使用可调节的耳轴，适用于不同耳朵。
3. 3. During surgery, the surgeon had to reposition the ear axis to correct the patient's balance issues.
   在手术期间，外科医生不得不重新定位耳轴以纠正患者的平衡问题。