.焊接术语翻译 喇叭形坡口flare groove锁底坡口single bevel groove with backing locked坡形板边 tapered edge焊缝 weld接逢 seam焊缝符号 welding symbol焊缝金属 weld metal填充金属 filler metal熔敷金属 deposited metal焊缝表面weld face/ face of weld焊缝背面 back of weld焊缝轴线axis of weld焊缝尺寸 size of weld焊缝宽度weld width/ width of weld焊缝长度 weld length/ length of weld焊缝有效长度 effective length of weld焊缝厚度 throat depth/ throat thickness焊缝计算厚度theoretical throat焊缝实际厚度actual throat熔深penetration/ depth of penetration焊缝成形