I considered some of the awful things my grandparents and great-grandparents had seen in their lifetimes: two world wars, killer flu, segregation, a nuclear bomb.
我想到了祖父母和曾祖父母在世时遇到的可怕事情：两次世界大战、致命流感、种族隔离、核弹。
The segregation of solute elements on metal grain boundaries may be divided into two categories, that is, equilibrium and non-equilibrium segregation.
溶质元素在金属晶界的偏聚可以分为两类，即平衡偏聚和非平衡偏聚。
Two different types of phase morphologies take place in copolymers with various compositions, that is, inter-lamellar and inter-fibrillar segregation.
同时，随共聚组成变化，共聚物呈现不同的相分离形态。
In order to analyze central segregation more accurately, the error in chemical analysis caused by sampling with two drills of different diameters is studied.
为了更合理地分析中心偏析，还对不同直径的取样钻头造成同一铸坯中心偏析的分析偏差进行了必要的研究。
The segregation of phosphorus on steel grain boundaries can be divided into two categories, which are, equilibrium segregation and non-equilibrium segregation.
磷元素在钢中的晶界偏聚可以分为两类，即平衡偏聚和非平衡偏聚。
The segregation of phosphorus on steel grain boundaries can be divided into two categories, which are, equilibrium segregation and non-equilibrium segregation.
磷元素在钢中的晶界偏聚可以分为两类，即平衡偏聚和非平衡偏聚。
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