pulsed short wave therapy

例句：

1. 1.The heart is the organ that pumps blood throughout the body.
   心脏是泵血的器官，遍布全身。
2. 2. The device has a pulsed light source for easy operation.
   该设备有一个脉冲光源，便于操作。
3. 3. The pulsating heartbeat of the ocean can be heard from a distance.
   从远处可以听到海洋的脉动心跳声。