chest electrode

例句：

1. 1.The chest electrode is used to monitor the patient's heart rate during surgery.
   胸部电极用于在手术期间监测患者的心率。
2. 2.During the test, the chest electrode was placed on the patient's chest.
   测试期间，胸部电极被放在病人的胸部上。
3. 3.The chest electrode helped doctors to better understand the patient's condition.
   胸部电极帮助医生更好地了解病人的状况。