Rollein.禄来福来反光照相机[商标名]rolln.卷；滚动；名单；压路机；颤音；圆形物，面包卷v.摇摆；滚；绕；转动；展开rolled edge deformity卷边变形roll grinding machine辊式碾碎机,辊子磨床,滚筒研磨机,轧辊磨床rolling straightening辊式矫直rolling mill rigidity轧机刚度rolling smoke curtain移动烟幕rolling cylinder gate滚动式圆筒闸门rolling contact joint滚动摩擦接合Rolling with laughter笑得前仰后合roll peripheral speed辊轴圆周速度rolling circumference滚动圆周