All the main economic characters of the populations showed the trend of the selective targets with decay of variability.

两群体各主要经济性状有向选择目标集中、变异度下降的趋势。

youdao

All the main economic characters of the populations showed the trend of the selective targets with decay of variability.

两群体各主要经济性状有向选择目标集中、变异度下降的趋势。

youdao