Cluster analysis and principal component analysis on data of anthropometry from Asian populations showed that Asian populations could be divided into north populations and south populations.
本文通过对亚洲群体体部测量资料的聚类分析与主成分分析，认为亚洲群体可分为北方类群与南方类群。
2
Complex linear polarization structure has been detected. The southcomponent is double, the north component triple.
观测到复杂的线偏振结构：南部子源有双重结构，北部子源有三重结构。
3
Artificial forest ecosystem of Lanhzou South-north Hills is an important component of Lanzhou urban ecosystem, it has decisive influence on Lanzhou urban ecological environment.