方法结合地理距离和遗传距离的关系，分别建立基于三种经典遗传距离的群体遗传空间结构异质性的变异函数模型。
Methods Spatial semivariogram models were set up based on genetic distance by analyzing the relationship between geographic distance and genetic distance.
CSS码作为其中一类具有特殊结构的稳定子码，可以由一个自对偶或一对满足扭关系的经典二元线性码构造。
As a class of stabilizer codes with special structures, CSS codes can be constructed by a dual-containing binary linear code or a pair of classical binary linear codes with twisted relation.
股权结构与公司绩效的关系命题是公司治理领域的经典命题。
The proposition of relationship between ownership structure and company performance is a classical one.
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