On the contrary, the surface imperfections, such as oscillation and subsurface segregation etc, found in DCC ingot, cause the mechanical properties drop largely.
相反，普通连续铸造锭表面因存在振动痕和亚表面偏析等铸造缺陷，力学性能大大降低。
2
It is lack of quantitative assessment of control effectiveness, especially the research on surfacesegregation as indicators of quality assessment is still very lacking.
对离析控制效果的定量评价，特别是表面离析作为沥青路面施工质量评价指标的研究还非常欠缺。
3
In this paper, the widely explored methods for constructing antifouling surfaces were reviewed, including the surface coating, surface grafting, surfacesegregation technologies.