反缝领尖带扣衬衣 Reverse Seam Button Down

反边缝 turning up hem

反射裂缝 reflection crack ; reflecting cracking

焊缝反面坡口 backing groove of weld

反面缝纫 undersewing

反射裂缝防治 Reflection crack control

温度型反射裂缝 thermal reflective cracking

焊缝反面加强 weld root reinforcement

反光缝合提高可见性 reflective stitching improves visibility

互反的裂缝公式 Reciprocity gap formulation