短语词组短語single bevel groove weld 單斜槽銲;單斜角槽銲bevel groove weld 斜槽熔接;雙斜邊坡口銲縫;單斜角槽銲double -bevel butt weld K 形坡口對接銲縫open -single-bevel butt weld 單麪坡口對接銲doubel -bevel weld 型對接銲道bevel -groove weld 斜角銲縫 返回 bevel weld