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1. The doctor used a heart catheter to check the patient's heart function.
医生使用心导管检查患者的心脏功能。
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2. During the procedure, the surgeon inserted a heart catheter into the patient's chest.
在手术过程中,外科医生将一根心导管插入患者胸部。
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3. After the procedure, the doctor removed the heart catheter and cleaned the patient's chest.
手术结束后,医生取出心导管并清理患者胸部。