pulse tube

例句：

1. 1. The doctor inserted a pulse tube into his arm to monitor his blood pressure.
   医生将一根脉搏管插入他的手臂来监测他的血压。
2. 2.During the operation, the surgeon used a pulse tube to remove the tumor.
   在手术过程中，外科医生使用一根脉搏管来切除肿瘤。
3. 3. The patient's pulse tube was connected to a monitor to track his heart rate.
   患者的脉搏管连接到一个监视器上，以追踪他的心率。