A long stick with a concave attachment at one end for shoving disks in shuffleboard.
推铲一端带有凹头的长棒，用于在打圆盘游戏中推动圆盘
A concave molding with a cross section that approximates a quarter circle.
飞檐的凹圆线脚截面近于九十度弧的凹线脚
An indented or concave surface or area.
凹陷，洼地凹的表面或地区
