短語詞組短語bead -weld 珠焊multi -layer -bead repair weld 多層多道補焊bead weld repair 堆焊修復(fù)Bead welding overlaying weld 堆焊bead on plate weld 平板上珠焊焊縫bead weld cracking test 焊縫開裂試驗bead weld material 堆焊材料wire feed bead weld 送絲堆焊weld bead [機]焊縫;焊道 返回 bead weld