sync-in pulse

例句：

1. 1. The sync-in pulse of the device is very stable.
   该设备的同步脉冲非常稳定。
2. 2. The sync-in pulse of the communication system was disrupted by interference.
   通信系统的同步脉冲因干扰而中断。
3. 3. The sync-in pulse of the data transmission was lost due to a hardware error.
   数据传输的同步脉冲因硬件错误而丢失。