scan pulse

例句：

1. 1. The scan pulse was triggered by the patient's heart rate.
   扫描脉冲是由患者的心率触发的。
2. 2. The scan pulse helped to locate the tumor in the chest.
   扫描脉冲帮助定位了胸部的肿瘤。
3. 3.The scan pulse was used to create a detailed image of the brain.
   扫描脉冲被用来创建大脑的详细图像。