血流速度计

例句：

1. 1. The doctor uses a blood flow velocity meter to monitor the patient's heart rate.
   医生使用血流速度计来监测患者的心率。
2. 2. The researcher developed a new blood flow velocity meter that could detect early signs of stroke.
   研究者开发了一种新型的血流速度计，能够检测到中风的早期迹象。
3. 3. The nurse used the blood flow velocity meter to measure the patient's blood pressure and pulse.
   护士使用血流速度计测量患者的血压和脉搏。