automatic metal forming machine

例句：

1. 1. The automatic door lock is easy to use.
   自动门锁使用起来很方便。
2. 2. The machine is automatically controlled by a computer.
   这台机器由电脑自动控制。
3. 3.The factory uses an automatic conveyor belt for loading and unloading goods.
   工厂使用一条自动输送带来装载和卸载货物。