pulse tracings

例句：

1. 1. The doctor used a pulse tracing to monitor the patient's heart rate.
   医生使用脉搏描记图来监测患者的心率。
2. 2. During the surgery, the surgeon used a pulse tracing to guide the needle.
   在手术过程中，外科医生使用脉搏描记图来引导针头。
3. 3.The nurse took a pulse tracing to check the patient's blood pressure.
   护士用脉搏描记图来检查患者的血压。