concave reinforced bar

• 凹形螺纹钢筋

concave reinforced bar的用法和样例：

例句

1. The continuous spiral thread upon the deformed reinforcing bar is formed by eliminating portions of longitudinal ribs that are formed upon the reinforcing bar during manufacturing.
   在该异形加强筋上的连续的螺旋形螺纹是通过去除在制造过程中在该加强筋上形成的部分纵向肋而形成的。