pulse-time ratio

例句：

1. 1. The doctor checked her pulse to ensure she was stable.
   医生检查了她的脉搏以确保她稳定。
2. 2.The patient's pulse-time ratio is critical for monitoring his health.
   患者的脉搏时间比率对于监测他的健康状况至关重要。
3. 3. The researcher found a significant correlation between the pulse-time ratio and the patient's recovery rate.
   研究者发现脉搏时间比率与患者的康复率之间存在显著的相关性。