Study of metapopulation dynamics is one of the most important subjects in modern conservation biology and ecology.

复合种群动研究当今保护物学学中最热门的课题之一。

Research on the origin and occurrence of gems and jades is one of the hottest topic in geology, gemmology and archaeology.

摘要宝玉石产地来源的研究近几年地质学、宝石学考古学界的热门话题之一。