名词
中文翻译：主动脉降部
同义词：
['aortic arch', 'aortic arch descending']
例句：
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1.The surgeon performed the surgery on the patient with the aorta descendens.
外科医生对患有主动脉降部的病患进行了手术。
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2.During the operation, the surgeon had to deal with the aorta descendens.
在手术过程中，外科医生必须处理主动脉降部。
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3. The patient's condition worsened due to the aorta descendens.
由于主动脉降部的问题，患者的病情恶化了。