双面焊缝

【化】 double welded joint

双面焊的英语翻译：

【化】 welding by both sides; welding from both sides

缝的英语翻译：

seam; sew; slot; stitch
【化】 opening
【医】 crevice; nesis; raphe; rhaphe; seam; sutura; suturae; suturation
suture; suture joints; suturing