wedge-shaped step

基本解释

There were some wedge-shaped holes in the strip and the strips made by the technology of investment were welded in step and kept distance between strips.
筛条上有若干梳齿孔，焊接时呈阶梯形状搭接，有一定的高度差，筛条材质为高碳低合金结构钢，采用精密铸造工艺生产。
Conical pile has the specialties of step-shaped pile and wedge-shaped pile because of its cone-shaped side formed by the linear reduced diameter of cross-section from the top to the bottom.
锥形桩，自桩顶至桩底，截面直径线性减小，形成圆台形侧面，既具有部分锥形台阶桩的性质，也具有部分楔形桩的性质。