同时也介绍了该设备在管道根焊和高效焊接方面的应用。

Also, the application of the new machine in pipeline root welding is introduced.

youdao

同时也介绍了该设备在管道根焊和高效焊接方面的应用。

Also, the application of the new machine in pipeline root welding is introduced.

youdao