心率计

例句：

1. 1. This heart ratemonitor is easy to use and accurate.
   这款心率监测仪易于使用且准确。
2. 2.He needs to check his heart rate regularly to ensure he's in good health.
   他需要定期检查心率以确保身体健康。
3. 3.The doctor prescribed a medication to help regulate his heart rate.
   医生开了一种药物来帮助调节他的心率。