power input plug

例句：

1. 1. The power input plug is located on the wall next to the socket.
   电源插头位于插座旁边的墙上。
2. 2. The power input plug needs to be inserted into the socket before turning on the lights.
   在打开灯之前，需要将电源插头插入插座。
3. 3. The power input plug should be securely fastened to prevent it from falling out during use.
   电源插头应该牢固地固定，以防在使用过程中掉落。