circular seam-welding machine

例句：

1. 1.This circular seam-welding machine can quickly weld the seams of various materials together.
   这台圆缝焊接机可以快速将各种材料的接缝焊接在一起。
2. 2.The engineer used this circular seam-welding machine to repair the damaged parts of the car.
   工程师使用这台圆缝焊接机来修理汽车的损坏部分。
3. 3. The circular seam-welding machine is an essential tool for welding and repairing metal parts.
   圆缝焊接机是焊接和修复金属部件的必备工具。