restore-pulse generator

例句：

1. 1.The device is used to restore lost data in computers.
   这个设备用于在计算机中恢复丢失的数据。
2. 2. The pulse generator was responsible for generating the heartbeat of the patient.
   脉冲发生器负责生成患者的心跳。
3. 3. The engineer used a special tool to restore the function of the damaged circuit board.
   工程师使用一种特殊的工具来修复损坏的电路板的功能。