Nevertheless, traditional circular grid method is no longer applicable for shallow stretching components with small forming capacity.
但对成形量小的浅拉延件，传统的圆网格法已不能满足要求。
2
When stamping the unflanged shallow box type parts, removing unnecessary material is advantageous to the stamping forming.
冲压无法兰边浅盒制件时，挖去多余材料有利于制件成形。
3
Many sedimentary rocks contain such features as ripple marks, exactly like those we can see forming in sediments at the bottom of present-day lakes or shallow seas.