automatic submerged-arc welding machine

例句：

1. 1.The new car has an automatic transmission.
   这款新车配备了自动变速器。
2. 2. She operated the machine with a joystick.
   她用操纵杆操作这台机器。
3. 3. The robot can perform tasks automatically.
   这台机器人可以自动执行任务。