pulse-temperature ratio

例句：

1. 1. The doctor measured the patient's pulse and temperature to determine if he was having a heart attack.
   医生测量了患者的脉搏和体温，以确定他是否正在经历心脏病发作。
2. 2. During the summer, the body's temperature can fluctuate significantly due to changes in ambient temperature.
   在夏季，由于环境温度的变化，人体的温度会显著波动。
3. 3. The study found that the pulse-temperature ratio could help predict the onset of certain diseases.
   研究发现，脉搏温度比率可以帮助预测某些疾病的发生。