circumferential seam
短语词组
- circumferential welded seam 环向焊缝
- preparatory circumferential welding seam 预留环缝
- preformed circumferential welding seam 预留环缝
- quality of circumferential welding seam 环缝质量
- circumferential seam joint 圆周接缝
- butt welding of circumferential seam 环缝对接焊;环缝对焊接 返回 circumferential seam