SINK: Surfacediscontinuity, depression or dimple caused by non - uniform material shrinkage.
凹槽：由材料收缩不一致引起的表面中断，下陷，凹洞。
2
Imperfection. A discontinuity in the product wall or on the product surface that can be detected by the inspection methods contained in this SOP manual.
缺欠。可用本标准操作规程手册中所述检验方法检验的产品壁面或表面不连续性。
3
It is the implication of the surface cultural discontinuity.