每条焊缝采用分段退焊法，减小焊接残余应力和变形。

Segmental back welding is adopted for each welding seam to minimize the residual stress and deformation of welding.

youdao

每条焊缝采用分段退焊法，减小焊接残余应力和变形。

Segmental back welding is adopted for each welding seam to minimize the residual stress and deformation of welding.

youdao