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1·Upper step wedge and lower pass-line adjustment unit serve to compensate wear of WR diameter and BUR diameter.

上阶梯垫装置和下轧制线调整装置是补偿工作辊和支撑辊直径磨损减小的装置。

2·However, lateral closing-wedge osteotomy and step-cut osteotomy, both of which have been used extensively with satisfactory outcomes, correct only in the coronal plane.

然而，外侧闭合楔形截骨和梯形截骨都被广泛使用并取得满意的结果，仅仅纠正冠状平面畸形。

3·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。