pulse peak detector

例句：

1. 1. The doctor used a pulse peak detectorto monitor the patient's heart rate.
   医生使用脉搏峰值检测器来监测病人的心率。
2. 2. The pulse peak detector was usedto detect the presence of oxygen in theblood.
   脉搏峰值检测器被用来检测血液中氧气的存在。
3. 3. The pulse peak detector is anessential tool for monitoring the health of patientswith heart conditions.
   脉搏峰值检测器是监测患有心脏病患者健康的重要工具。