In this paper, a class of new sequence pair, that is, unequal periodic sequence pair, is put forward and its correlative property, existence condition is studied.

文中定义了一类新的序列偶形式——不等周期序列偶，研究了不等周期序列偶的相关性质，存在条件。

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At present, the problem of residential segregation is becoming increasingly obvious, bringing the unequal distribution of social resources, class antagonism, and other negative impacts.

当前，国内外城市居住分异问题愈趋明显，带来社会资源分配不均、阶层对立等负面影响。

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"Distribution of inherited wealth is very unequal and correlated with social class, " he says.

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Twinning unequal outcomes with equality of opportunity produces sustainable world class community and economic outcomes that are the foundation for the next generation of economic and social success.

ECONOMIST: Inequality and the world economy

Almost monolithically middle class until the 1980s, German society has grown more unequal today.

ECONOMIST: The Federal Republic at 60