aortic orifice

例句：

1. 1. The doctor performed an emergency aortic valve replacement surgery on him.
   医生为他进行了紧急的主动脉瓣置换手术。
2. 2.During the operation, the surgeon had to make several aortic valve repairs.
   在手术过程中，外科医生不得不进行几次主动脉瓣修复。
3. 3. Aortic valve disease is a common cause of heart failure in older people.
   主动脉瓣疾病是老年人心脏衰竭的常见原因。